The KSLA-191029-RH is a high-performance K-band antenna engineered for space, airborne, and high-capacity datalink applications requiring exceptional link margin, polarization purity, and power handling. Operating over 19.0–20.0 GHz, the antenna delivers 25.3 dBic gain, tight 9° beamwidth, and right-hand circular polarization (RHCP) in a compact, rugged form factor optimized for demanding aerospace environments.
Designed for next-generation spacecraft crosslinks, TT&C expansion bands, ISR payloads, and high-data-rate point-to-point links, the KSLA-191029-RH provides significantly higher power handling (50 W CW) and superior axial ratio (< 1.5) compared to typical K-band patch or low-profile solutions, enabling cleaner polarization performance and increased system EIRP.
High gain (29.0 dBic) for extended link range and improved SNR
50 W CW power handling supporting high-power transmit chains
Excellent polarization purity with axial ratio < 1.5
Narrow and Symmetrical beamwidth for interference mitigation and precise pointing
RHCP optimized for space and satellite datalink architectures
Frequency Range: 19.0 – 20.0 GHz
Gain: 29.0 dBic
3-dB Beamwidth: 9.0° (typ.)
Polarization: RHCP or LHCP
Axial Ratio: < 1.5
VSWR: 1.8:1 max
Impedance: 50 Ω
Power Handling: 50 W (CW)
Dimensions: 6.5″ ×6.5″ × 0.78″
Weight: 8 oz
Mounting: 4× holes for 6-32 or M4 screws
RF Interface: WR-34 waveguide or 2.92 mm coaxial
Spacecraft and satellite high-rate K-band downlinks
Crosslink and inter-satellite communications
High-power airborne and ISR datalinks
Precision point-to-point microwave links
Experimental and next-generation space communications payloads
| Model | Connector | Frequency | Gain | Size | VSWR | Polarization |
|---|---|---|---|---|---|---|
| KSLA-191029-RH | WR34 or 2.92mm | 19.0–20.0 GHz | 29.0 dBi | 6.5”x6.5”x0.8” | 1.5:1 | RHCP |
Price: Call for pricing
