Title :
A meander-line bow-tie antenna
Author :
Ali, M. ; Stuchly, S.S.
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
Abstract :
A new class of antenna, the meander-line bow-tie (MLBT) antenna is proposed. Similar to other bent antennas, e.g. zigzag, meander etc., this antenna resonates at a shorter length than a straight-wire monopole or dipole. Also this antenna has superior performance characteristics compared to other bent wire antennas. The results presented in this paper show that the meander-line bow-tie antenna has larger input resistance at resonance than any of the two other bent antennas. Other characteristics such as, radiation pattern, gain, polarization etc., are similar to the straight-wire monopole until the segment lengths exceed some threshold length. As an example, a meander-line bow-tie antenna is described in this paper which radiates as a dipole and which is 39% shorter than a straight-wire dipole. This antenna has an input resistance of 50 /spl Omega/ at resonance and a bandwidth of 8.6% within VSWR<2.
Keywords :
antenna radiation patterns; antenna theory; electric impedance; electromagnetic wave polarisation; monopole antennas; wire antennas; bandwidth; bent antennas; dipole; gain; input resistance; meander-line bow-tie antenna; performance characteristics; polarization; radiation pattern; resonance; segment lengths; Antenna radiation patterns; Application software; Bandwidth; Dipole antennas; Electromagnetics; Manufacturing; National electric code; Polarization; Resonance; Wire;
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.1996.549897