Title :
Admittance of waveguide fed slot radiators
Author :
Gupta, S. ; Chakrabarty, A. ; Das, B.N.
Author_Institution :
Dept. of Electron. & Electr. Commun. Eng., Indian Inst. of Technol., Kharagpur, India
Abstract :
The authors present an accurate procedure of computation of the admittance characteristics of rectangular slots fed by rectangular waveguides. The feeding waveguide is excited with the dominant TE/sub 10/ mode. A moment method with entire domain basis functions is used for solving the electrical field in the slot. Attention is given to obtaining the appropriate dimension of the radiating slot so that the reflection coefficient due to the radiating load remains below 0.1 over a large frequency band. Computed values are compared with measured data.<>
Keywords :
antenna feeders; antenna theory; electric admittance; rectangular waveguides; waveguide antennas; admittance characteristics; dominant TE/sub 10/ mode; electrical field; entire domain basis functions; moment method; rectangular slots; rectangular waveguides; reflection coefficient; waveguide fed slot radiators; Admittance; Equations; Feeds; Frequency; Geometry; Magnetic field measurement; Magnetic fields; Moment methods; Rectangular waveguides; Reflection;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1989. AP-S. Digest
Conference_Location :
San Jose, CA, USA
DOI :
10.1109/APS.1989.134858
