Title :
Investigation of periodically loaded leaky-wave antenna with inhomogeneous metal strips
Author :
Guoding Li ; Changshen Si ; Haihua Mao
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
The Green´s function method with the Fourier transformation of the spectral domain is used to obtain the relation between the propagation constant and the width of the strips for a periodically loaded leaky-wave antenna. Two antennas corresponding to different source amplitude distributions have been designed and made. It is concluded that different source amplitudes of the leaky-wave antenna can be realized by means of a periodically loaded, fundamentally slow, traveling-wave structure, where the widths of the strips are different. As a result, the desired pattern can be obtained. The maximum radiation direction of the antennas changes with frequency: therefore, frequency-scanning can be realized over a large region.<>
Keywords :
antenna theory; antennas; load (electric); metals; Fourier transformation; Green´s function method; frequency-scanning; inhomogeneous metal strips; leaky-wave antenna; maximum radiation direction; periodically loaded antenna; propagation constant; slow travelling wave structure; source amplitude distributions; spectral domain; strip width; Antennas and propagation; Attenuation; Current distribution; Dielectrics; Fourier transforms; Leaky wave antennas; Loaded antennas; Propagation constant; Radio access networks; Tellurium;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1990. AP-S. Merging Technologies for the 90's. Digest.
Conference_Location :
Dallas, TX, USA
DOI :
10.1109/APS.1990.115160
