Title :
F-matrix for a coaxial feed in a microstrip patch antenna
Author :
Inagaki, N. ; Ohkura, H. ; Kikuma, N.
Author_Institution :
Dept. of Electr. & Comput. Eng., Nagoya Inst. of Technol., Showa, Japan
Abstract :
In the LN-PC hybrid technique, numerical analysis method for microstrip patch antennas of arbitrary shape, the regions under and outside of the patch are solved separately by means of the theory for planar circuits (PC) and the theory for linear antennas (LN), respectively, and the two solutions are matched at the boundary. Although it leads to reasonably good results, more elaborate studies are desired concerning the patch edge and the coaxial cable to a planar circuit junction. The latter problem is dealt with, and the F-matrix representation of the junction is presented together with a few numerical examples. The input impedance is calculated by means of the present theory for a circular microstrip antenna.<>
Keywords :
antenna feeders; electric impedance; matrix algebra; microstrip antennas; F-matrix; LN-PC hybrid technique; circular microstrip antenna; coaxial cable; coaxial feed; input impedance; linear antennas; microstrip patch antenna; numerical analysis; planar circuits; Antenna theory; Circuits; Coaxial cables; Coaxial components; Feeds; Microstrip antennas; Numerical analysis; Patch antennas; Shape; Voltage;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1989. AP-S. Digest
Conference_Location :
San Jose, CA, USA
DOI :
10.1109/APS.1989.135054
