Author: dengyoUSA

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Why Base Station Antennas Play a Vital Role

Why Base Station Antennas Play a Vital Role

We live in a world that is increasingly impacted by Artificial Intelligence. AI is all around us, permeating practically every activity and human pursuit. In the world of telecommunications AI is having a huge impact. In three important ways it has underscored the critical role that base station antennas play in wireless network communications.

  • Base station antennas must transmit huge amount of data.
  • They must support low latency communications
  • They must be extremely efficient with high gain
  • Dependable with high quality

Base station antennas are the backbone of effective data transmission. Especially in our AI-driven world, they provide high-speed, low-latency, and reliable connectivity for the many data-intensive applications that depend on them.

Drivers, Doctors, and Drones

Autonomous vehicles need to instantly analyze data from cameras and sensors to make driving decisions, which requires high-throughput communication. Base station antennas play a central role this high-speed data transmission, allowing AI systems to operate in real-time.

Similarly, AI-powered smart traffic systems rely on split-second communication between sensors, control centers, and other devices. High-performance base station antennas provide seamless, real-time connectivity, allowing AI systems in traffic control to make accurate and timely decisions.

Another example is remote medical diagnosis. Physicians must transmit diagnostic data in real-time with 100% accuracy. Supported by base stations, they can accomplish this from hundreds of miles away.  And as base stations evolve to handle broader frequency bands, the promise of fast and reliable data transmission will expand, even in crowded networks.

Autonomous drones and smart city monitoring systems involve numerous devices connected simultaneously to the network. Here, base station antennas function as the foundation, supporting efficient processing of AI data across multiple devices.

Growth is Everywhere

The Internet of Things continues to rapidly expand. IoT devices, including robots, and wearables, generate massive amounts of data that need to be processed locally (at the edge) or transmitted to cloud systems. 5G and 6G base station antennas optimize data transfer, enabling real-time AI decision-making without network congestion. By providing ultra-fast, secure, and efficient communications, they will allow the growth of IoT to move forward smoothly.

Base station antennas are important even in agriculture (smart farming). AI-driven crop monitoring, irrigation control, and automated machinery depend on 5G and IoT antennas in rural areas. Reliable connectivity ensures AI models can make real-time farming decisions with uninterrupted accuracy with the coverage from high gain efficient antennas.

In a world increasingly dependent on AI, base station antennas do more than just transmit signals. They are intelligent, adaptive, and essential for AI-powered connectivity.  At DENGYO, our decades-long pursuit of cutting-edge innovation has resulted in the development of antennas that can meet the ever-expanding needs of our AI-driven world.

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How Do Base Station Antennas Survive Hurricanes

DENGYOUSA Base Stations surviving hurricanes
Go to Antennas

How do base station antennas survive hurricanes? The answer, my friend, is blowing in the wind.

There were 27 individual weather and climate disasters in 2024 with $1 billion or more in damages – following a record-setting 2023 with 28 such events in the US. Wireless communications between family members, first responders, disaster relief workers, and infrastructure repair personnel become mission-critical. The stakes are high. In this article, we dive into the wind loading of base station antennas, a key parameter of their ability to survive storms and extreme wind conditions.

Wind Loading

When the wind blows, an antenna experiences a force pushing against it. The stronger the wind, the stronger the force. The larger the antenna, the stronger the force. The equation describing the force acting on the antenna is:

F = 0.5 * ρ * V² * Cd * A

F is the wind force

ρ is the air density (the humid air of tropical storms is loaded with moisture)

V is the wind speed (this term is squared, so it has a dominant effect)

Cd is the antenna drag coefficient, a measure of aerodynamic efficiency (i.e. its shape)

A is the cross-sectional area of the antenna directly facing the wind (i.e. its size)

Industry Standards

The air density (ρ) and wind speed (V) are design parameters for operational and survival limits, which generally depend on local conditions and building codes. In the US, the Telecommunications Industry Association (TIA) sets the national standard with ANSI/TIA-222-H. This was updated in 2018 to align with the American Society of Civil Engineers standard, ASCE-7, for gust wind speeds, seismic loading, and other specifications. The Next Generation Mobile Networks Alliance (NGMN) also publishes the BASTA guidelines to standardize how electrical and mechanical parameters of antennas are specified.

In the United States, base station antennas are generally rated to survive storm wind speeds up to 150mph. South Dakota, Montana, Wyoming, Idaho, and Colorado are known for high average wind speeds. Expansive, flat plains provide few natural obstacles to slow the wind, while mountain ranges can accelerate air currents. Florida is in the path of many hurricanes emanating from the Gulf of Mexico every year, so highly durable antennas are required.

Source: NOAA Climate.gov

Japan Experiences Extreme Wind Loading

Japan frequently experiences major earthquakes and typhoons, by virtue of the fact that the island nation is situated in the Pacific Ring of Fire tectonic belt and in the Northwest Pacific Typhoon Alley, where the planet’s most powerful tropical cyclones are born. As a result, Japan has some of the strictest building codes in the world.

Dengyo has supplied antennas to the Japanese market for 70 years, and our antennas are built to withstand Japan’s extreme weather events. Wind speed survivability is rated to 200mph, higher than the 150 mph in the US. To meet these high standards, Dengyo’s antenna designs feature slimmer panel widths and aerodynamic contours to reduce drag. Our build quality is second to none, with RMA rates among the lowest in the industry.

For more information on Dengyo’s base station antenna portfolio, please visit https://dengyousa.com/antenna/

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Lens Antennas: A New Category of Multi-Beam Base Station Antennas

The Luneburg lens

Just as a glass magnifying lens focuses light, an RF lens focuses radio frequency waves traveling through it into a point on the other side. When such a lens is placed in front of radiating structure – such as an antenna – the transmitted and received RF signals are also focused. This can result in improved RF link budgets, longer range, or more focused sectors. That’s the basic idea behind lens antennas.

RF lenses are made with specialty dielectric materials that refract RF waves, similar to optical lenses which use glass to refract light. But these RF lenses are more than just a simple magnifying lens – it’s a special type of RF lens known as a Luneburg lens, which enables highly efficient multi-beam, multi-sector operation to improve coverage and capacity.

Dengyo lens antenna
Lens antenna: two beams @ 15° beamwidth
a simple type of spherical lens
Spherical RF lens focuses the beams

The Luneburg lens

Invented in 1944 by Rudolf Luneburg, this unique lens design has the special property that it focuses radio waves regardless of which direction the signal is coming from, due to its spherical shape. A standard convex magnifying glass only focuses properly when viewed boresight, on-axis – when viewed off-center, the image is distorted. However, the view through a glass marble, a simple type of spherical lens, stays the same regardless of direction. In mobile networks this means that multiple beams, or sectors, can be served by a single lens.

To achieve the Luneburg lensing effect, the lens is constructed from dielectric materials of varying permittivity’s, typically 2 at the center of the lens and 1 at the edge. This creates a gradient index of refraction which smoothly bends and focuses the radio waves as they pass through the lens.

Implementing this effect on antennas allows for some improvements in a whole array of applications

Sector splitting – small sectors, higher capacities

Dense urban environments, stadiums and event venues, and transportation corridors are typical locations where heavy mobile traffic and limitations on antenna placement dictate the need for optimized coverage and capacity techniques. Sector splitting is one such technique: instead of using a single 65° beam for a sector, multiple beams of 30°, 20°, 15° and so on can be used. The reduction in beamwidth allows multiple beams to cover the same area and boost throughput overall.

Traditional sector antennas are also capable of providing multiple beams, though with a significant trade-off of larger antenna sizes and reduced performance. Alternatively beam-forming and beam shaping techniques used by massive MIMO radios have a similar effect on coverage and capacity, but MIMO radios are not viable in the lower frequency bands. They also rely on power-intensive digital signal processing algorithms, while a lens is a simple passive element that doesn’t consume any power.

Luneburg lens antennas are a new tool for solving the perennial challenge of coverage and capacity constraints in mobile networks. Their performance shows excellent results in spatial efficiency, gain and coverage, and are an excellent fit for cell sites that serve many subscribers, experience congestion, or have coverage challenges.

 

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Sector-Splitting

Dengyo Sector-Splitting Luneburg

The Use of Sector-Splitting to Add Capacity in Dense Areas

Mobile network operators face constant pressure to increase 5G network coverage and capacity. There are different ways to achieve this, such as adding new cell sites or small cells, but the important question is not necessarily how, but what is the best way to accomplish this?Sector splitting is arguably the quickest and most cost-effective way to densify and add capacity to the mobile network. Just take an existing sector and split it into two, three or more sectors by adding radios and antennas.

New Multi-Beam antennas

Recently Dengyo launched its new line of Luneburg lens antennas, with multi-beam options. A multi-beam antenna splits a sector into 2, 3, or 4 sectors so that multiple antennas are not needed. Radios are then added to the new, smaller sectors to add capacity.

 

Avoid the costs of building a new site

Sector splitting is a far quicker and cost-effective option than adding a new site, whether the site is a macrocell, microcell, or picocell. Sector-splitting leverages the existing site infrastructure, so it avoids many costs associated with building a new site including:

  • • Site acquisition & permitting
  • • Construction & project management
  • • Site preparation and commissioning
  • • Operating costs including fiber fronthaul/backhaul, rent, and insurance

New Multi-Beam antennas

Recently Dengyo launched its new line of Luneburg lens antennas, with multi-beam options. A multi-beam antenna splits a sector into 2, 3, or 4 sectors so that multiple antennas are not needed. Radios are then added to the new, smaller sectors to add capacity.

Base Station Antennas- LENS SPHERE from Dengyo

Luneburg Lens Antenna

LSD20-2BA2AC2E4BQ-0R35

•  Splits one sector into multiple sectors with a varying beamwidth by frequency band.

•  High beam isolation to prevent interference

•  Excellent spectral efficiency

Horizontal Pattern
Radiation Pattern (1880-2025MHZ)

Sector splitting

Horizontal Pattern

Horizontal Pattern
Radiation Pattern (1710-1830MHZ)

Horizontal Pattern
Radiation Pattern (885-960MHZ)

Radiation Pattern (703-798MHZ)

Dengyo Sector Splitting

For more information on Dengyo’s multi-sector lens antennas, please visit

Luneburg Lens Antennas
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Designing the Future of Wireless Connectivity

Future of Wireless Connectivity

In a world running on instant connections—where AI drives autonomous cars, surgeons perform remote surgery, and data streams in real-time—the wireless infrastructure has to be an enabler.

For over seven decades, the team at DENGYO has been obsessively engineering antenna and base station solutions that do more than just send and receive RF signals; they are the reliable hardware that makes mobile connectivity possible.

Less Hardware, More Intelligence

We believe in minimalist performance. Our product portfolio is built for all RF environments: the packed city street, the sold-out stadium, and the factory floor or warehouse. Our hardware is designed to provide coverage and capacity.

Take, for example, our Luneburg lens antenna. The concept is a classic—first introduced in 1944—where a sphere of dielectric material can focus radio waves from any direction at once.

Instead of relying on power-hungry digital processors to steer beams, this passive lens is constructed with a dielectric gradient to naturally bend and concentrate RF waves. It’s an ultra-efficient workhorse that allows you to split sectors, boost capacity in crowded areas, and deliver multiple beams simultaneously—all without taking up precious cell tower space.

Full Portfolio of Antennas

DENGYO’s comprehensive portfolio includes base station antennas and specialty antennas for all environments, including:

  • • 2 – 12 port panel antennas
  • • Beamforming antennas, up to 28 ports or more
  • • Small Cell canister antennas for flag poles and light poles
  • • Tri-sector canister antennas
  • • Luneburg lens antennas spherical and cylindrical
  • • Antennas for Stadium and Venues
  • • In-building antennas for DAS systems

The NINJA: Invisible Power for Visible Impact

The NINJA Antenna Series was engineered to provide RF coverage while blending seamlessly into the background. It doesn’t look like an antenna at all—it looks sleek and transparent. With NINJA antennas, you no longer must choose between performance and aesthetics.

It’s not just about looking good; it’s about making installation easy in places that were previously impossible, all while delivering robust, responsive 5G service. For venue managers, city planners, and operators, the NINJA VLTA is the ultimate secret weapon: it keeps the signal strong and the sightlines clean, proving that the highest performing antennas don’t have to stand out to stand strong.

Looking Ahead

The demands on wireless are only going up. As AI deepens its role in everything from smart traffic systems to drone logistics, base station antennas must deliver higher throughput, enhanced coverage, and unwavering reliability across more frequency bands.

DENGYO’s solutions are already powering the most advanced Open RAN and 5G/6G deployments for leading operators and vendors worldwide. We take pride in building solutions that isn’t just engineered for the challenges of today’s networks—but built to support the intelligent, adaptive infrastructure of tomorrow.

To learn more, explore our project portfolio today.

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DENGYO Announces its Ninja VLTA Transparent Antenna Series

DENGYO Announces its Ninja VLTA Transparent Antenna Series