A Coplanar Waveguide Fed Two Arm Archimedean Spiral Slot Antenna With Improved Bandwidth

作者：Mashaal O Ahmad; Rahim S K A; Abdulrahman A Y; Sabran M I; Rani M S A; Hall P S

来源：IEEE Transactions on Antennas and Propagation, 2013, 61(2): 939-943.

DOI：10.1109/TAP.2012.2224831

• Circular polarization
• coplanar waveguide (CPW)
• spiral antenna
• ultra wideband

A compact wideband circularly polarized (CP) printed antenna design is presented in this communication. The proposed antenna consists of two Archimedean spiral slots, loaded with two chip resistors and fed by a coplanar waveguide (CPW) transmission line. The antenna is situated in one plane and fed without using an external balun or a matching network. The antenna has wideband input impedance bandwidth with circular polarization (CP), and broad beamwidth radiation pattern over 1.6:1 bandwidth. The study has shown that the proposed antenna is capable of improving the CP bandwidth and reducing the overall antenna size.

• 出版日期2013-2