
13–31 GHz Low Noise Amplifier / LNB — Outdoor Unit Receiver (ODU) Technical Specifications
Product Type: Broadband Low Noise Amplifier (LNA) / Low Noise Block Downconverter (LNB), integrated outdoor receive unit for microwave link or SATCOM earth station
RF Input Frequency Range: 13.0 – 31.0 GHz (full band coverage; sub-bands configurable per customer frequency plan, e.g. K / Ka band segments)
IF / Output Frequency (LNB mode): 950 – 2150 MHz (L-Band standard); optional 0.5 – 3.0 GHz extended IF
Local Oscillator (LO): Internal PLL or DRO; frequency customizable per RF band; external 10 MHz reference supported (0 ± 3 dBm)
LO Frequency Stability: ±1 ppm (PLL internal) / ±30 ppm (DRO typical); tracks external 10 MHz reference when supplied
LO Phase Noise (typical PLL): ≤ -60 dBc/Hz @ 100 Hz, ≤ -75 dBc/Hz @ 1 kHz, ≤ -85 dBc/Hz @ 10 kHz, ≤ -95 dBc/Hz @ 100 kHz
Noise Figure / Noise Temperature (LNA mode): NF ≤ 2.5 – 4.0 dB (typical); equivalent noise temperature ≤ 150 – 440 K depending on band/sub-band
Conversion Gain (LNB mode): 50 – 65 dB (typical 55 – 60 dB), gain adjustable via M&C (0 – 30 dB range optional)
Gain Flatness: ±0.5 dB / 36 – 40 MHz, ±1.5 dB full RF band (over temp.)
Output P1dB (1 dB Compression Point): ≥ +10 dBm (typical +12 to +15 dBm)
Output IP3 (Third Order Intercept): ≥ +20 dBm (typical +25 dBm)
Image Rejection: ≥ 45 dB (image reject mixer topology)
Spurious (in-band / out-of-band): ≤ -60 dBc (signal related), ≤ -70 dBm (non-signal related)
RF Input Port: WR-62 (K band <18 GHz) / WR-42 (Ka 18–26.5 GHz) / WR-28 (Ka 26.5–40 GHz) waveguide flange per band; optional coaxial SMA female 2.92 mm (K-type) for bench model
IF Output Port: N-Type 50 Ω female or F-Type 75 Ω (L-band); SMA 50 Ω optional; DC + 10 MHz reference can be fed via IF coax (power-over-coax)
DC Power Supply: +12 VDC / +15 VDC / +24 VDC (typical 200 – 500 mA); optional wide-range 90 – 260 VAC via indoor power unit
Monitoring & Control (optional): RS-232 / RS-485 / Ethernet (SNMP); supports remote LO lock detect, gain setting, alarm reporting and redundancy switch command
Operating Temperature: -40 °C to +60 °C (some MIL-grade models -50 °C to +70 °C)
Storage Temperature: -55 °C to +85 °C
Humidity: 0 – 100% RH (condensing), salt fog resistant (MIL-STD-810G optional)
Ingress Protection: IP65 / IP67 weatherproof die-cast aluminum housing with UV-stable coating, suitable for direct feed-horn mounting
Dimensions (typical LNB format): ≈ 128 × 80 × 38 mm (varies by band/waveguide)
Weight: ≤ 600 g
Compliance: ETSI EN 301 459, FCC Part 25 (where applicable), ITU-R S.484 recommended radiation pattern compatibility, MIL-STD-810G environmental test methods