Title :
Improvement of planar antenna efficiency when integrated with a millimetre-wave photonic crystal
Author :
Burns, Gerard W. ; Thayne, I.G.
Author_Institution :
Dept. Electron. & Electr. Eng., Glasgow Univ., UK
Abstract :
In this work a coplanar waveguide (CPW)-fed slot dipole antenna has been integrated with a three-dimensional woodpile photonic bandgap crystal (PBG) in the W-band regime (67-110 GHz) using silicon. A slot dipole antenna has been designed and tested at 94 GHz which exhibits very poor efficiency and has high levels of loss through the back of the substrate. This integration has shown a large positional dependence of the antenna with respect to the layers of the PBG and has led to the optimisation of a slot dipole antenna on the PBG. This type of integration has shown experimentally that the overall operation of an antenna can be greatly improved due to the reflective properties of the PBG.
Keywords :
antenna feeds; antenna radiation patterns; antenna testing; coplanar waveguides; millimetre wave antennas; photonic crystals; slot antennas; 67 to 110 GHz; CPW-fed slot dipole antenna; W-band; antenna test; coplanar waveguide; millimetre-wave photonic crystal; optimisation; planar antenna efficiency; reflective properties; silicon; three-dimensional PBG; woodpile photonic bandgap crystal; Coplanar waveguides; Dipole antennas; Optical losses; Photonic band gap; Photonic crystals; Planar arrays; Reflector antennas; Silicon; Slot antennas; Testing;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2004. IEEE
Print_ISBN :
0-7803-8302-8
DOI :
10.1109/APS.2004.1330309
