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Ring slot antennas

(flush with aircraft skin)
Ringschlitzantenne
Matching network   Coaxial cable

Figure 2: Ring slot antenna

Compared to normal dipoles, the aerodynamically more favourable ring slot antennas are preferred on very fast aircraft.


     Ring slot antenna
λ/4-antenna Antenna with roof capacity
for shortening
the antenna strongly shortened and
shifted back to ground level

Figure 1: Development process