Dual frequency circularly polarised microstrip antenna
نویسنده
چکیده
A dual frequency and dual circular polarisation multilayer microstrip antenna element for satellite communication is presented. The element is fed by a gap-coupled probe pin. The microstrip element exhibits a dual frequency band of operation for two orthogonal circular polarisations. A parametric study to optimise the element performance has been conducted. A prototype with dimensions that are based on the simulations has been built and tested. A good agreement between the measured and numerical results was found.
منابع مشابه
Omnidirectional circularly-polarised microstrip patch antenna
An omnidirectional circularly-polarised patch antenna is proposed. The antenna radiates right-handed circular-polarisation with an average axial ratio of 2.3 dB over a full 3608. A shallow diagonal CPW inset-feed was used to achieve good matching to the back-to-back coupled patches, providing a measured S11 ,215 dB at the centre frequency. The measured cross-polar performance is better than 13 ...
متن کاملA Dual-band Circularly Polarized Stub Loaded Microstrip Patch Antenna for Gps Applications
A single-feed low-profile and easy to fabricate circularly polarized microstrip patch antenna has been developed for GPS applications. For dual frequency operation, four slots are etched near edges of the patch and a crossed slot etched in the center for generating circular polarization. In order to reducing the frequency ratio of two frequency bands of the antenna, the patch is loaded by four ...
متن کاملGHz AND 5 . 8 GHz COMPACT DUAL - BAND CIRCULARLY POLARIZED PATCH ANTENNA
A dual-band circularly polarized stacked microstrip antenna for ISM Bands (2.45GHz & 5.8GHz) applications is designed and implemented. By stacking two different corner-truncated square patches in a dielectric substrate layer, the microstrip antenna for dual-frequency circular polarization (CP) can be achieved with −11.5 dB and −12.8 dB measured return loss for 2.45GHz and 5.8GHz. Semicircular g...
متن کاملDesign Analysis of Broadband Circularly Polarised Compact Microstrip Antenna for Wireless Applications
w w w . i j e c t . o r g Abstract GPS, Satellite phones, requires broadband, miniature size and circularly polarized antennas. Microstrip antennas have inherently narrow bandwidth, hence demanded enhanced bandwidth and size reduction. The present paper discusses the design of wideband compact and circular polarised MSA. The bandwidth of proposed antenna is enhanced by using EC stacked patch an...
متن کاملIntroduction and Overview 1.1 Introduction
Conventional microstrip antennas in general have a conducting patch printed on a grounded microwave substrate, and have the attractive features of low profile, light weight, easy fabrication, and conformability to mounting hosts [1]. However, mi-crostrip antennas inherently have a narrow bandwidth, and bandwidth enhancement is usually demanded for practical applications. In addition, applicatio...
متن کامل