Compact Microstrip-T Coupled Patch Antenna for Dual Polarisation and Active Antenna applications.

D.G. Kurup, A. Rydberg and M. Himdi

IEE Electronics Letters, vol. 38, Oct. 2002, pp. 1240-1241.

Abstract:

A novel way of feeding single layer microstrip patch antennas using electromagnetically coupled microstrip-T junctions is proposed. The measured isolation and 10dB bandwidth of an X-band dual polarised antenna are ~32dB and 2.1% respectively on an Er 3.0 substrate. Since both ports of the antenna are electromagnetically coupled, the proposed antenna eliminates the need of capacitors in the RF path for active antenna applications.