2-18GHz Back Cavity Spiral Antenna OBS-20180

The OBS20180 is a compact, moderate gain, moderate VSWR, circularly-polarized cavity-backed spiral antenna designed to transmit and receive in the frequency band of 2.0 GHz to 18.0 GHz.  The antenna exhibits an excellent impedance match and radiation pattern.


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Part No. OBS20180
Frequency* 2GHz-18GHz
Nominal Gain3 dB -3 Typ~1 Typ16°
VSWR 2.51Maximum2.0:1 Typical
Pattern Directional Bean
3 dB Beamwidth 65°MinimumTypical
10 dB  Beanwidth 120° Typical
Input Impedance 50 Ohms Nominal
Input Connector SMAfemale