Title :
Analysis of dual-arm logarithmic spiral microstrip patch antennas
Author :
Tavakoli, A. ; Fard, A. ; Moini, R.
Author_Institution :
Amirkabir Univ. of Technol., Tehran, Iran
Abstract :
A dual-arm logarithmic spiral patch antenna is analyzed using the segmentation method and multiport network theory. Applying this approach, the antenna characteristics such as bandwidth, input impedance, scattering parameters, and radiation patterns are calculated. The theoretical and experimental results are in very good agreement with each other and show that the antenna is circularly polarized over a wide frequency band. The model along with an optimization routine can be used to design dual-arm spiral patch antennas.
Keywords :
S-parameters; antenna radiation patterns; conformal antennas; electric impedance; electromagnetic wave polarisation; microstrip antennas; multiport networks; spiral antennas; antenna characteristics; bandwidth; circularly polarized antenna; coaxial feed; conformal antenna; dual-arm patch antennas; experimental results; frequency band; input impedance; logarithmic spiral microstrip antennas; multiport network theory; optimization routine; planar spiral antenna; radiation patterns; scattering parameters; segmentation method; Antenna radiation patterns; Antenna theory; Bandwidth; Frequency; Impedance; Microstrip antennas; Patch antennas; Polarization; Scattering parameters; Spirals;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1996. AP-S. Digest
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
0-7803-3216-4
DOI :
10.1109/APS.1996.549783
