Title :
Millimeter-wave proximity-coupled microstrip antenna on an extended hemispherical dielectric lens
Author :
Mall, L. ; Waterhouse, R.B.
Author_Institution :
Sch. of Electr. & Comput. Syst. Eng., R. Melbourne Inst. of Technol., Vic., Australia
fDate :
12/1/2001 12:00:00 AM
Abstract :
A low-cost, high-gain, millimeter-wave antenna is presented. The antenna is composed of a proximity-coupled microstrip patch mounted on the back surface of a substrate lens. The antenna utilizes low dielectric constant, low-cost materials and is therefore suitable to many commercial millimeter-wave systems. A full-wave analysis was developed to analyze the performance of the printed antenna and a prototype was developed for operation at 38 GHz. The impedance bandwidth of the prototype was 8% and the gain was approximately 30 dBi across this frequency span with a front-to-back ratio greater than 60 dB
Keywords :
dielectric devices; electric impedance; lens antennas; microstrip antennas; millimetre wave antennas; permittivity; 38 GHz; MM-wave proximity-coupled microstrip antenna; commercial millimeter-wave systems; copolar radiation patterns; extended hemispherical dielectric lens; front-to-back ratio; full-wave analysis; gain; high-gain antenna; impedance bandwidth; input impedance response; low dielectric constant; low-cost antenna; low-cost materials; millimeter-wave proximity-coupled microstrip antenna; performance analysis; proximity-coupled microstrip patch; radiation performance; substrate lens; Bandwidth; Dielectric constant; Dielectric materials; Dielectric substrates; Lenses; Microstrip antennas; Optical materials; Performance analysis; Prototypes; Surface impedance;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
