An antenna with high gain converts guided RF energy into focused, directional beams with a very low loss and a clean, predictable radiation pattern. Antenna Experts designs and manufactures high gain horn antennas in the 1 GHz to 9 GHz frequency range. The antennas are available in single linear, dual linear, and circular polarizations. In radar front ends, microwave communication links, satellite systems, and EMC test benches, these antennas are used wherever a stable pattern and reliable gain matter. We build every unit in-house in India, and you can specify the frequency band, connector, radome, and finish.
What is a High Gain Horn Antenna?
An antenna with a high gain is a waveguide with an open end. By gradually matching the guided wavefront to free space, the flare shapes the wavefront into a focused beam. All gain is derived from geometry – there are no active components and no electronic tuning is necessary.
It is because of this passive design that Horn antennas are so reliable. Energy is guided rather than scattered, so little is lost, and the antenna produces a clean main lobe with modest side lobes. This predictability is why horns are the reference standard for RF measurement, and why radar and microwave systems rely on them at the front end.
Features and specifications of the product
The gain, aperture, and frequency of a horn antenna are interconnected: a larger aperture increases the gain, and for a fixed aperture, a higher frequency increases the gain while narrowing the beamwidth. A higher gain, therefore, entails a tighter beam that must be aimed more precisely.
Parameter and Specification
Frequency range – 1 GHz – 9 GHz (custom bands available)
Polarization – Single linear, dual linear, circular
Impedance – 50 Ω
VSWR – Low across the operating band
Pattern – Directional, clean main lobe, low side lobes
Radome – All-weather on dual polarized models
Mounting – Rear plate standard; centre-of-gravity points on larger models
Finish – Grey paint or light-grey powder coat
Dual-polarized models are supplied with all-weather radomes, from basic dust protection to heavy environmental sealing. Larger horns include centre-of-gravity mounting points, allowing the antenna to be set in either polarization by removal and refitting.
The application
Horn antennas are at the forefront of several fields due to their combination of focused gain and repeatable pattern:
- The horn makes a natural radar front end due to its high directivity and stable beam.
- In microwave communication, the signal is concentrated along a fixed path with minimal spillage
- Communication via satellite – circular polarization maintains the link as the far end rotates
- It is a trusted reference for EMC testing due to its well-characterized pattern and constant antenna factor
- The entire requirement for antenna pattern measurement and gain calibration is predictability
- The performance of broadband RF systems is maintained across a wide frequency range
It covers common radar, microwave, satellite, and EMC test bands between 1 and 9 GHz.
Why Choose Antenna Experts?
Who machines and builds an antenna whose performance relies entirely on precise geometry is important.
Unlike rebadged imports, Antenna Experts designs and manufactures its own high gain horn antenna range in India. The antenna is built to your exact frequency band, polarization, and mounting requirements rather than forced to fit a stock part. Your technical questions will be answered by the engineers who designed it.
An antenna’s specification is based on the environment in which it will be used. The mounting system is configured for installation. The finishing, packaging, and delivery of precision antennas are routine tasks for Antenna Experts as a manufacturer, supplier, and exporter of high gain horn antennas.
Options for customization
As all products are manufactured in-house, the range is genuinely configurable rather than fixed:
- Customized frequency band for your operating requirements
- A single linear polarization, a dual linear polarization, or a circular polarization
- Connector type — specified to your system
- Radome — selected for deployment in the environment
- Finish — any specified paint colour or custom finish
- Mounting — configured for the installation
Sending your specification and the antenna is built around it.
Frequently Asked Questions
What is the frequency range covered by a high-gain horn antenna?
Antenna Experts manufactures high gain horn antennas covering the frequency range of 1 GHz to 9 GHz. In addition to radar, microwave, satellite, and EMC test frequencies, these antennas cover a wide range of frequencies. On request, custom frequency bands can be manufactured.
What is the gain of a horn antenna?
As aperture size and frequency increase, gain increases, while beamwidth narrows. The aim of a higher-gain horn must therefore be more precise. For exact dBi figures across your band, please refer to the model datasheet.
What is the difference between dual-polarized and circular circular horn antennas?
A dual polarized horn antenna handles two orthogonal linear polarizations at once, suiting radar and polarization-diversity systems. A circular polarized horn antenna maintains the signal regardless of how the far end is oriented, which suits satellite links and moving platforms.
Are high gain horn antennas suitable for outdoor use?
Yes. Dual polarized models ship with all-weather radomes, with options from basic dust protection to heavy environmental sealing, and are finished in grey paint or powder coat.
