Title :
Low cross-polarised patch antenna with single feed
Author :
Kan, H.K. ; Waterhouse, R.B.
Author_Institution :
Sch. of Eng. & Phys., Univ. of the South Pacific, Suva
Abstract :
A probe-fed patch antenna that generates low cross-polarised radiated fields is presented. The probe is located in the centre of the patch conductor and a microstrip line within the patch is used to ensure that good impedance matching is achieved. Enhanced radiation performance of the printed antenna is demonstrated by theoretically and experimentally investigating a circularly polarised (CP) version of the probe-fed patch antenna and comparing the results with a conventional probe-fed CP patch. The new radiator has an axial ratio of less than 1.5 dB at broadside and a 3 dB axial ratio beamwidth of close to 200deg
Keywords :
antenna radiation patterns; electromagnetic wave polarisation; impedance matching; microstrip antennas; microstrip lines; enhanced radiation; impedance matching; low cross-polarisation; microstrip line; patch conductor; printed antenna; probe-fed patch antenna; single feed;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20070224
