CPI LKA20S110 Ka-Band LNA, 18.2–20.2 GHz, 110 K
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Product details
The CPI LKA20S110 is a Ka-Band low noise amplifier (LNA) from CPI's LK-20S000 Series. It covers 18.2–20.2 GHz with a maximum noise temperature of 110 K at +23 °C, guaranteed across the full band.
It provides temperature-compensated gain of 59 dB minimum (65 dB maximum), a WR-42 waveguide input, an SMA output, input and output isolators, and a Form A alarm. It runs on +11 to +28 VDC and operates from -40 °C to +70 °C.
Order it as LKA20S110-XXXXX: the suffix selects gain (60 or 50 dB), output power (+12 or +20 dBm), DC or AC power, and white, green or tan paint. The LK-20S000 Series comes in 5 listed models; compare them on the series page.
Other models in this series
- LKA20S120: 18.2–20.2 GHz, 120 K
- LKB20S110: 20.2–21.2 GHz, 110 K
- LKB20S120: 20.2–21.2 GHz, 120 K
- LKC20S120: 17.7–21.2 GHz, 120 K
Compare all 5 CPI LK-20S000 Series Ka-Band LNA models
Specifications
| Part number | LKA20S110-XXXXX |
|---|---|
| Series | CPI LK-20S000 |
| Frequency range | 18.2–20.2 GHz (Band A), 20.2–21.2 GHz (Band B) or 17.7–21.2 GHz (Band C) |
| Noise temperature (max., +23 °C) | 110 K (bands A and B) or 120 K |
| Gain | 59 dB min., 65 dB max.; 49 dB min., 55 dB max. with Option 1 |
| Gain flatness | ±1.0 dB full band; ±0.25 dB per 40 MHz |
| Input VSWR | 1.25:1 typ., 1.30:1 max. |
| Output VSWR | 1.40:1 typ., 1.50:1 max. |
| Output P1dB | +12 dBm min. (+14 dBm typ.); +20 dBm min. (+22 dBm typ.) with Option 2 |
| Output IP3 | +22 dBm min. (+24 dBm typ.); +27 dBm min. (+29 dBm typ.) with Option 2 |
| Group delay per 40 MHz | 0.01 ns/MHz linear, 0.001 ns/MHz² parabolic, 0.2 ns p-p ripple |
| AM/PM conversion | 0.05°/dB max. at -5 dBm output |
| Gain stability, constant temperature | ±0.1 dB (10 min), ±0.2 dB (24 h), ±0.5 dB (1 week) typ. |
| Gain vs. temperature | 5.0 dB p-p typ. (temperature compensated) |
| Max. input power (damage) | 0 dBm |
| Desensitization threshold, 27.0–31.0 GHz | -15 dBm |
| RF input | WR-42 cover flange (#4-40 threaded holes) |
| RF output | SMA female |
| Power connector | PT02E-8-4P-027 (mate supplied) |
| Supply voltage | +11 to +28 VDC; 90–265 VAC option (consult factory) |
| Current | 600 mA |
| Alarm | Form A |
| Operating temperature | -40 °C to +70 °C (-40 °C to +60 °C with AC option) |
| Finish | Commercial white; green (FED-STD-595B 34094) or tan (33303) optional |
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