Seamless. That’s the best way to describe the look of today’s high-end venues. From control panel touchscreens installed into the wall to doors that glide effortlessly on hidden hinges, every aspect of modern convenience blends seamlessly into the overall aesthetic of the venue. 

So why shouldn’t your wireless solution be the same?

Transparency is the New Black

At DENGYO, we take a minimalistic and clean approach to designing wireless solutions. That’s why we developed the Visible Light Transmittance Antenna (VLTA), also known as the transparent antenna.

Developed by DENGYO using specially-engineered materials produced through 3M science and innovation, the transparent antenna is similar in look and feel to very thin plexiglass and designed to offer venues a high-performing in-building wireless network solution while maintaining a very minimal visible presence. The transparent material allows light to pass through it making it practically invisible, while still maintaining robust connectivity within your venue. 

The revolutionary antenna is mounted perpendicularly under the ceiling, on a wall or in other locations, blending in perfectly with its surrounding environment. Because of its transparency and slim profile, a transparent antenna can be installed in locations that simply aren’t feasible with more traditional antenna options. 

Consider this… if you were tasked with installing as in-building wireless network solution inside the Sistine Chapel, would you want a bulky traditional antenna hanging next to the Creation of Adam? Probably not. However, if you installed a VLTA, visitors could still marvel at Michelangelo’s masterpiece without any visual distraction and still access their favorite sports app to get the latest scores. 

Two Options to Choose From

Currently, DENGYO offers two models of transparent antenna and recommends their use for indoor coverage in museums, restaurants, showroom galleries, ballrooms, hotels and hospitals. Each model is small, lightweight and easy to install. 

2×2 MIMO Support Wideband Visible Light Transmittance Omni Antenna

• Can be installed inside or outside
• Frequency Range: 1700 ~ 5000MHz
• Gain: > 2dBi
• Intermodulation: -153 dBc
• Dimensions: 75 x 370mm
• Weight: 350g

2×2 MIMO Support Wideband Visible Light Transmittance Panel Antenna

• Can be installed inside or outside
• Frequency Range: 1710 ~ 3700MHz
• Gain: Approximately 10dBi
• Intermodulation: -153 dBc
• Dimensions: 160 x 160mm
• Weight: 500g

Looks That Match Performance

From indoor antennas with minimal visual distraction to multi-band shared antennas and filters for LTE, 5G wireless and beyond, DENGYO focuses on performance quality and clean aesthetics to create wireless technology that performs exceptionally well. If you want a wireless solution that seamlessly blends in with your environment and provides you with proven coverage and performance, give us a call. We’re ready to help you look and perform your best.

It’s an exciting time in the wireless industry: a massive infusion of some 500 MHz of spectrum has been auctioned by the FCC. Expanding today’s mobile and fixed wireless networks and services will help bridge the digital divide, accelerate 5G adoption, and spur innovation in industrial manufacturing, IoT, and autonomous vehicles. What are the drivers behind this industry evolution? Let’s start with the new frequency bands:

• CBRS: 3550-3700 MHz
• C-band: 3700-3980 MHz
• 3.45 GHz: 3450-3550 MHz (FCC auction scheduled for 2021)

Spread the wealth: Evolution of spectrum licensing

One goal of the FCC auctions has been to make spectrum more readily available to smaller mobile network operators and enterprises. For 3.45 GHz, this means smaller spectrum blocks and a 40 MHz cap on total blocks in any one area. For CBRS, dubbed the “Innovation Band” by the FCC, a new shared spectrum model and light licensing for Generally Authorized Access (GAA) open the door to a new cast of players.

A shared spectrum model is also being proposed for the 6 GHz band, to support licensed microwave backhaul and unlicensed Wi-Fi 6 users. These licensing polices are intended to spur industry innovation and drive economic activity.

Open RAN (O-RAN): More choices for building a mobile network

After years of consolidation, only a handful of end-to-end telecom equipment manufacturers remain. Operators are limited in their choices and may be trapped by vendor lock-in.

Enter O-RAN, the operator-led initiative that is gaining momentum across the board and seeks to build a more robust, competitive supplier ecosystem for the radio access network. Open specifications encourage smaller manufacturers to focus on their core competencies and bring best-of-breed, competitive solutions to market. This benefits operators by bringing more viable choices to the table, which has the effect of increasing competition and lowering costs.

Private LTE, a potential new revenue stream

The introduction of shared spectrum is a key enabler to Private LTE, wherein an enterprise has its own cellular network (generally when Wi-Fi cannot do the job) for mission-critical applications and may be optimized for its specific coverage or performance requirements.

Previously the enterprise had to lease licenced spectrum or buy the network as a service from the operator. With shared spectrum, they can do it themselves. However, the vast majority of enterprise lack the expertise to build and operate a cellular network – something for which operators are uniquely positioned to do. In addition, the enterprise may allow the operator’s customers to use their private network (to expand or improve the operator’s coverage) with a revenue sharing arrangement.

New Opportunities

All these changes in the industry are ushering in an era of wireless innovation – new technologies and products, new business models, and more choices than ever before. Are you embracing the change and staying competitive in this evolving landscape?

With new opportunities opening up due to a massive infusion of 500 MHz of spectrum to the wireless industry, you need to be prepared to take full advantage. That means choosing the 3.5GHz antenna that best suits your needs. 

Whether you’re using it for IoT, 5G, LTE, Fixed Wireless Broadband, Private Networks or for new, emerging applications, DENGYO has you covered with a variety of antennas that cover the range between 3.3-4.2GHz. 

Panel Antennas

The standard antenna used by most of the industry, panel antennas are considered the workhorse for wireless solutions. Available in multiple port options, DENGYO’s panel antennas are designed with efficiency in mind and perfect for any base station configuration. 

4-Port and 8-port 

• Single Band
• 7 models to choose from 
• 3-8 feet in height depending on model 

10-Port and 12-Port

• Multi-Band
• 5 models to choose from
• 2-8 feet in height depending on model

Beam-Forming Antennas

Using focused wireless signals, beam-forming antennas are more precise in signal delivery than panel antennas resulting in faster and more reliable connectivity.

Multiple Port Options (16, 20, 24, 28)

• Multi-band
• 15 models to choose from
• 4-9 feet in height depending on model 

Canister Antennas

Designed with aesthetics in mind, cannister antennas have all the functionality of a panel antenna while being more visually appealing to the eye. 

Multiple Port Options (4, 12, 14, 16, 18)

• Multi-band
• 7 models to choose from
• 2-6 feet in height depending on model

Specialty Antennas

Primarily used for indoor wireless solutions, DENGYO’s specialty antennas are small and lightweight, designed to provide premium coverage while blending into their environment. 

VLTA – Visible Light Transparent Antenna

• Frequency range 1710-5000GHz
• 2 models to choose from
• Dimensions: 75x370mm or 160x160mm, depending on model
• Similar in look and feel to plexiglass, allowing light to pass through it.

Film Wrap Antenna

• Frequency range 3400-4100GHz
• Dimensions: 190x300mm
• Flexible and decorative, sticks to any surface using adhesives 

With almost 40 antenna designs available and the ability to create customized solutions that meet your unique RF needs, DENGYO’s portfolio of 3.5GHz antennas can help you accelerate your technology and deployment. For more detailed information on all our 3.5GHz antennas, download the brochure so you can review our detailed specifications. For more than 70 years, DENGYO has sought to enrich our future by drawing on our unique cultural heritage to create innovative wireless solutions to the most complex challenges facing our industry today. Drop us a lineand let us help you enrich your future. 

For most connectivity challenges, the answer is easy. Simply install the antenna where it’s most convenient using metal fittings to hold it in place. It’s not always the prettiest installation but it’ll get the job done. 

But what happens when you need to provide quality mobile solution while protecting the integrity of the surface you’re adhering to?

Most indoor antennas are made up of plastic transmitters that stand out no matter where they’re installed. Blending in isn’t exactly an option unless everything in the room is painted generic white. 

Thankfully, there’s an antenna option available that not only has great connectivity, but it can be installed anywhere, and you’ll never even know it’s there.   

Camouflaged Connectivity that Installs Anywhere

The Film Wrap Sector Antenna, or simply film wrap antenna, is a revolutionary new antenna from DENGYO that allows you to create a connectivity solution that you can install on any surface without damaging it. 

We took a clean and minimalistic approach to designing the film wrap antenna from a thin, bendable and lightweight material, so you can attach it to practically any surface, whether it’s flat or curved. 

Typically, technicians are forced to drill holes and use metal fittings to securely install normal antennas. This can damage the surface and in some high-end venues, this is the last thing you want to do. The film wrap antenna adheres to most surfaces using a simple strip of strong double-sided tape developed by 3M. 

To hide in plain sight, the antenna can be covered with a special film that can be color matched to blend into the surrounding environment, whether it’s installed on a wall, streetlight, vending machine or signage. You can even get film that blends in with concrete, marble and wood. And the best part is that the film doesn’t interfere with any incoming or outgoing signals. 

Two Options to Fit Your Need

There are two models of film wrap antenna currently available from DENGYO. Each model in thin, lightweight, bendable and very easy to install. 

3.5GHz 4MIMO Film Wrap Sector Antenna (GS00190)

• Can be installed inside or outside
• Single Band
• Frequency Range: 3400-4100MHz
• Gain: 9dBi
• Half-Power Beam Width 70°
• Dimensions: 300mm x 190mm
• Weight: 200g

4.7GHz 4MIMO Film Wrap Sector Antenna (GS00191)

• Can be installed inside or outside
• Single Band
• Frequency Range: 4400-4900MHz
• Gain: 9dBi
• Half-Power Beam Width 70°
• Dimensions: 300mm x 190mm
• Weight: 200g

Clean Designs that Match Performance

From camouflaged antennas that can be installed anywhere to multi-band shared antennas and filters for LTE, 5G wireless and beyond, DENGYO draws on its unique cultural heritage to bring innovative solutions and clean aesthetics to create wireless technology that performs exceptionally well. If you need a wireless solution that causes minimal visual distraction while providing proven coverage and performance, give us a call. We’re ready to help you look and perform your best.

In 2006, the United Nations-supported Principles for Responsible Investment (PRI) report first discussed ESG standards and principles, requiring that companies incorporate ESG standards in financial evaluations. In the 2010s and 2020s, ESG became a much more proactive area. 

Sixty-three investment companies with $6.5 trillion in assets under management signed on early. As of March 2022, 4800 signatories from over 80 countries with assets of about US $100 trillion had signed up to the PRI. 

ESG factors are an effort to guide businesses toward and measure responsible practices. But ESG is also good business. Upcoming generations – Millennials and Gen Z – are much more socially conscious than their predecessors, basing buying and investment decisions on ESG factors. But what does ESG mean in practice, and how is Dengyo incorporating ESG in its business philosophy and operations?

ESG Definitions

Dengyo and ESG

Dengyo’s mission has always been to open up the future with radio waves.

• Using unique technology, we create new value that connects people and society, contributing to society’s progress and development.

This mission is the foundation of Dengyo’s sustainability principles and practices and informs our sustainability statement. 

• We strive to resolve social issues through our business and contribute to the realization of a better society.

Read on for specifics regarding how Dengyo responds to ESG guidelines. 

Dengyo and Environmental Factors

We believe developing new technology to harness radio waves can help solve environmental and societal issues. Dengyo aims to develop technology that improves how people connect and resolves medical, safety, security, environmental, and energy challenges.

Dengyo’s Environmental Actions

• In all our business activities, we take climate change into account. We promote carbon neutrality by striving for the Science-Based Targets (SBT) that seek to limit global temperature rise to 2°C above pre-industrial levels. 
• We are constantly developing business activities that contribute to our goal of reducing our greenhouse gas emissions 30% by 2030 compared to 2018. 
• We conduct environmental behavioral guidelines education for all employees via e-learning, including new hires and executives, achieving a 100% participation rate.
• In our operations, we have updated to high-efficiency air conditioning equipment, switched our lighting to LED, and introduced solar power generation equipment. We continue to upgrade as these technologies further develop toward lower environmental impact. 
• We ask all our suppliers to agree to our Sustainable Procurement Policy, which includes regulatory compliance, human rights protection, environmental conservation, and workplace safety. Seventy percent of our suppliers have signed the policy, and we have trained 100% of our employees on responsible sourcing.

Dengyo and Social Factors

All of Dengyo’s activities respect human rights. We contribute to our community and require that every employee act with high ethical standards and integrity.

Dengyo’s Social Actions

• Dengyo’s Sustainability Behavior Guidelines state that we will respect human rights and prohibit discrimination, harassment, child labor, and forced labor. 
• We share our Supply Chain CSR Procurement Promotion Guidelines with our business partners. These guidelines include human rights requirements. 
• We regularly monitor our entire supply chain for negative impacts on human rights and work to prevent or reduce any we identify. 
• We maintain a comfortable working environment, prohibit harassment, promote work-life balance, and provide flexibility through telework. 
• We consider biodiversity in the landscaping around our offices and perform cleanup activities to keep our grounds attractive for the local community. 
• When emergencies arise, we respond, contributing to re-establishing communications.

Dengyo and Governance Factors

We continually evaluate our governance factors and train our employees in relevant topics. We focus on productivity improvement to reduce overtime hours and overworking. 

Dengyo’s Governance Actions

• We proactively reduce information security risks, protecting internal and confidential information.
• We manage safety in the workplace for the protection of all individuals and have an excellent safety record. 
• We conduct regular education and training to enable employees to express their abilities fully and to disseminate information about respecting human rights and eliminating harassment. 
• We respect employees’ labor rights, including organizing and bargaining collectively. 
• We comply with all applicable laws and regulations. 
• The company responds in good faith to any act that violates laws, regulations, guidelines, and internal rules. 
• We promote respect for human rights and fair business activities. 
• We have had no serious legal violations or information security incidents.
• We maintain an internal whistle-blowing system and a section on our website where external stakeholders can inquire about compliance.

A Few Final Words About Dengyo and ESG

At Dengyo, we strive to be conscientious stewards of the environment, treat employees, partners, and community members respectfully, and constantly improve our ESG efforts. As the world’s environmental situation evolves, we stay flexible and proactive in our initiatives. It’s not only the right thing to do. It closely aligns with our overall mission:

• Using unique technology, we create new value that connects people and society, contributing to society’s progress and development.

If you have any questions, contact us. We would love to hear from you.

• https://corpgov.law.harvard.edu/2023/03/04/esg-trends-to-watch-in-2023/        
• https://www.forbes.com/sites/betsyatkins/2020/06/08/demystifying-esgits-history–current-status/?sh=168963682cdd
• https://www.bloomberg.com/professional/blog/esg-assets-may-hit-53-trillion-by-2025-a-third-of-global-aum/
• https://corporatefinanceinstitute.com/resources/esg/esg-environmental-social-governance/
• https://corporatefinanceinstitute.com/resources/esg/esg-environmental-social-governance/
• https://en.wikipedia.org/wiki/Principles_for_Responsible_Investment

In the world of RF, there is no such thing as a one-size-fits-all antenna. A stadium antenna is designed for capacity and a restricted coverage area, while a macro base station antenna may be optimized for high gain and requires RET (remote electrical tilt) functionality. Some sites require concealment or must comply with strict building codes or municipal by-laws.

You don’t have to be an RF engineer to design an antenna. At DENGYO, our core competency is in designing and manufacturing quality antennas. We do the heavy lifting so that you can focus on the key performance specifications. Let’s look at some of the key parameters that can be specified when designing a custom antenna.

Base Station Antenna customization options

1. Frequency Bands
   Multi-band antennas serve multiple frequency bands with a single antenna and minimizes footprint. An operator’s spectrum holdings may vary by area and by frequency, so the combination of frequency bands deployed may vary by area/site. We tailor to the customer bands with antennas that have wide frequency performance at all the popular spectrums from 617 MHz to 6 GHz.
   
2. Number of ports 
   The number of ports on an antenna varies greatly to match both frequency bands and radio configurations.  From a simple 2 port antenna for limited spectrum like low band 617-894 MHz with 2×2 radio configuration; to 28 ports at low band, mid band, high band with 2×2 radio configuration; to 4×4 radio configuration or 8×8 radio configuration for MIMO applications where necessary. The number of ports at each frequency will vary to match the radios used for any bands or sub bands within the antenna’s frequency range.
   
3. Gain
   Gain is typically maximized at the different frequencies, while at the same time each frequency band needs to have the gain provide similar coverage to match the radio.  The higher the frequency, the higher the attenuation and hence the shorter the range. Higher frequencies usually require higher gain to reach the cell edge.  This however can also be managed by using MIMO configurations that will also increase the effective reach of the signal. The lower the frequency the larger the antenna elements and antenna dimensions will vary depending on the gain needed.
   
4. Horizontal Beam Width (HBW)
   One method to adjust coverage and capacity is to engineer the radio sites with different HBW antenna configurations.  The very popular 65 degree HBW is typically used for a 3 sector site. If an engineer wants to add capacity to same site often they will reduce the HBW to 45 degrees or 33 degrees to add sectors from 4 to 6, or even more, with narrower beam antennas.  A narrower HBW typically requires a wider antenna with antenna elements side by side. This allows more radios to be connected and therefore increase capacity at the site.  Providing antenna designs to suit the customer needs for HBW is yet another customizable option.
   
5. Vertical Beam Width (VBW)
   The VBW of the antenna is used to also optimize the coverage area of where the radio signals are transmitted to and received from.  A very large vertical beam will spread the signal in a larger area and must be managed carefully.  For smaller VBW typically more antenna elements are stacked to reduce the beam which also adds gain.  Adjusting the VBW for an antenna is therefore a desirable customization option.
   
6. Passive Intermodulation (PIM)
   These unwanted PIM signals that can cause problems with signal integrity and impact data rates to and from the mobiles need to be managed very carefully.  Minimizing any nonlinear interaction of the signal while being conducted and transmitted by the antenna is critical. The current standards are often revised to higher requirements as new standards evolve for higher data rates from analog to GSM, CDMA, WCDMA, LTE, 5G and higher. We have seen requirements evolve from -150 dBc to -153 dBc to even -159 dBc (using two 20 watt signals).
   
7. Remote Electrical Tilt (RET)
   This requirement is tied very closely to the radio configuration required.  The RET mechanically changes the phase of the different antenna elements so that the antenna beam is adjusted vertically.  For each radio configuration, the RET device will allow the adjustment of multiple antenna beams for the radio(s) connected to the associated antenna ports. So having one command to the RET device control two beams for a 2×2 radio configuration or 4×4 or 8×8 is desirable.  We provide options for any number of radio configurations.
   
8. Size and Weight
   The final dimensions of an antenna are always a critical requirement for mobile network operators.  Minimizing the antenna’s final size and weight is an important design consideration.  Tower loading and wind loading must be managed since most towers will have multiple antennas for each sector and will often have antenna at multiple levels.  Making sure the site is physically robust is very important. Also, often for leased towers, operators may have leasing costs that will vary by size and weight.nfiguration. 

The Design Process

Our design process is a robust process where all the considerations above (as well as many more) are evaluated against our capabilities and existing designs.  The number of antenna elements for gain, HBW, VBW are considered and accounted for.  Simulation of the design is the first step to ensure the design is capable.  Specifications are then provided with antenna radiation patterns to customer for approval. After simulation the initial engineering units are built and evaluated. Materials are carefully selected for PIM performance along with the other requirements.  RET configuration and mechanical design is then completed. After initial engineering build and evaluation small adjustments may be made for final mass productions considerations and performance.

Manufacturing and Testing

During the engineering evaluation documentation is completed so that at the end of engineering evaluation the product is ready for mass production.  Testing methods and equipment required to measure compliance are determined so that each product is manufactured and tested the same way each time, to ensure dependable and reliable performance. Each antenna is tested to ensure customer never has an issue and there is test data available for each unit.