DESIGN OF MULTI-BAND CAVITY BACKED HELICAL ANTENNA
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The paper presents design and optimization of helical antenna to resonate multiple bands. Special impedance matching rectangular cavity has been designed which backs the helical antenna so that electric field vector can be confined. The antenna is operating in the frequency range of 5-16 GHz. The antenna has a peak gain of 9.61 dB and a maximum of six resonant bands. Computer simulation tool is used in the designing.