Title :
Radiation properties of coaxial colinear antennas
Author_Institution :
Dept. of Electr. Eng., Nat. Chung-Hsing Univ., Taichung, Taiwan
Abstract :
A single coaxial colinear antenna is considered as a base station antenna for personal communication systems due to its low cost and structural simplicity. It consists of several segments of half-wavelength coaxial cables where the inner conductor of one cable is electrically connected to the outer conductor of the adjacent one. The intent is to have the excitation voltages across all the slots in phase and equal in magnitude so that a stronger in-phase current distribution can be driven on the outer surface of the coaxial cable to obtain a high gain in the broadside direction.
Keywords :
antenna radiation patterns; coaxial cables; land mobile radio; linear antennas; personal communication networks; 951 to 992 MHz; base station antenna; broadside direction; coaxial colinear antennas; excitation voltages; half-wavelength coaxial cables; in-phase current distribution; inner conductor; outer conductor; personal communication systems; radiation properties; Antenna feeds; Coaxial cables; Coaxial components; Current distribution; Microwave antennas; Power cables; Slot antennas; Surface waves; Transmitting antennas; Voltage;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1997. IEEE., 1997 Digest
Conference_Location :
Montreal, Quebec, Canada
Print_ISBN :
0-7803-4178-3
DOI :
10.1109/APS.1997.630132
