Waveguide Duplexer

1. Physical Characteristics

1.1 Material requirement: Aluminum alloy plate
1.2 Outer dimensions: see figure below
1.3 Surface coating: Cavity silver plated; flange conductive oxidation
1.4 Interfaces: TX/RX ports – SMA Female connectors; antenna port – UBR220 flange
1.5 Weight: ≤350 g

2. Electrical Performance

2.1 Frequency ranges:

17700–17865 MHz / 19260–19425 MHz

17840–18000 MHz / 19400–19560 MHz

17975–18140 MHz / 19535–19700 MHz
2.2 Passband insertion loss: ≤0.6 dB
2.3 In‑band ripple: ≤0.2 dB
2.4 In‑band return loss: ≥18 dB
2.5 Isolation: ≥65 dB
2.6 Operating temperature: -40 °C ~ +60 °C (design guaranteed)
2.7 Pressure rating: ≥5 psi (between flange and cavity)
2.8 Relative humidity: 5% ~ 90%