Title :
Undersized long backfire antenna
Author :
Hristov, H.D. ; Kirov, G.S. ; Urumov, J.R.
Author_Institution :
Dept. of Radiotech., Higher Inst. of Mech. & Electr. Eng., Varna, Bulgaria
Abstract :
Using an approximate synthesis procedure, a practical undersized backfire antenna (BFA) with a nonuniform corrugated rod structure was developed. Many backfire antenna designs with synthesized corrugated surface-wave rods were manufactured and tested. A comparison between the parameters of two long backfire antennas having the same basic dimensions but differing in the surface-wave (SW) structures (uniform and modulated) is presented. It is found that a BFA with a synthesized nonuniform SW structure has an optimum directivity. An undersized backfire antenna with a nonuniform corrugated rod designed for an optimum frequency of 2.0 GHz is described.<>
Keywords :
directive antennas; microwave antennas; 2 GHz; corrugated surface-wave rods; long backfire antennas; nonuniform corrugated rod structure; optimum directivity; synthesis procedure; undersized backfire antenna; Antenna feeds; Antenna theory; Aperture antennas; Corrugated surfaces; Dipole antennas; Directive antennas; Frequency; Horn antennas; Reflector antennas; Surface impedance;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1989. AP-S. Digest
Conference_Location :
San Jose, CA, USA
DOI :
10.1109/APS.1989.134972
