Abstract
AbstractThis paper presents the design of a compact circularly polarized patch antenna in LTCC technique for X band (10.87 GHz) frequency range. The proposed antenna consists of a corner truncated ceramic microstrip patch antenna with small circular shaped ground plane. The coaxial probe feed technique is used to excite the patch antenna. The probe feed position improves the impedance bandwidth. The antenna consists of Dupont 951 dielectric material having dielectric constant of 7.8 and thickness 1.6 mm. Various simulations were carried out to optimize the feed position and truncated corners as well as the ground plane size in high frequency simulation software (HFSS) for center frequency 10.87 GHz. The S11 parameter at this frequency is −17 dB and gain is 0.5 dB with axial ratio beam width of around 107° of the antenna.KeywordsMicrostrip patch antennaLTCCCircular polarizationFinite ground plane
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