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.
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.