Products> Antenna Products > Dual-Feed, Dual-Frequency Wideband Horn-Lens Antennas > Dual-Feed, Dual-Frequency Wideband Horn-Lens Antennas
Description:
Dual-feed, dual-frequency wideband horn-lens antennas represent a compact, high-performance solution for multi-band RF systems in 10 GHz to 170 GHz range. They combine broadband horn design, precision dielectric lens shaping, and a dual-port feed architecture to deliver exceptional gain, low sidelobes, and high polarization purity across multiple frequency bands—all from a single physical aperture.
Dual-Feed Architecture
The use of two physically separate feed ports allows each to operate on an independent channel, supporting different frequency bands or vertical and horizontal polarizations without the need for additional antennas. This approach reduces the number of apertures required on a platform, saves space, and minimizes system complexity.
Dual- and Four-Frequency Operation
- Dual-Frequency Mode: Achieved by designing each feed system for its own dedicated band (e.g., Port A: W-band, Port B: Ka-band).
- Four-Frequency Mode: Realized by integrating a diplexer on each feed port. Each diplexer splits the input/output into two sub-bands, resulting in:
- Two bands on Port A
- Two bands on Port B
This yields four independent operating bands in total, enabling uplink, downlink, telemetry, and auxiliary functions simultaneously without cross-interference.
Scalable Aperture Options
With standard lens diameters of 6, 9, and 12 inches, these antennas can be scaled to meet specific gain and beamwidth requirements.
- 6-inch lens: Compact, lighter, ideal for mobile or space-constrained systems.
- 9-inch lens: Balanced size-to-gain ratio for general purpose use.
- 12-inch lens: Highest gain and narrowest beamwidth for long-range links or precision measurements.
Key Technical Advantages
- Independent optimization for each frequency band, ensuring best-in-class performance per channel.
- Minimal intermodulation through feed separation and diplexing.
- Compact integration into existing radar, satellite, or test platforms.
Applications
- Satellite Communications
Dual-band or four-band operation supports multiple links from a single aperture. For example:
Uplink: Ka-band (27–31 GHz)
Downlink: V-band (47-51 GHz)
Additional diplexing allows simultaneous operation in multiple sub-bands within each range, optimizing bandwidth allocation and link redundancy.
- Radar Systems
Enables simultaneous search and track modes on different frequency bands.
Supports multi-band imaging for improved target classification and reduced susceptibility to frequency-dependent clutter.
- EMC & RCS Measurement
Eliminates the need to physically change antennas when switching between regulatory test bands.
High gain, narrow beamwidth, and low sidelobe levels enhance measurement precision and repeatability.
