Title :
A gap-induced element resonance in single-polarized arrays of notch antennas
Author_Institution :
Dept. of Electr. & Comput. Eng., Massachusetts Univ., Amherst, MA, USA
Abstract :
Arrays of notch antennas offer one of the best opportunities for realizing wide-bandwidth, wide-scanning phased arrays. There are a number of troublesome resonances that plague these arrays. These resonances disrupt the otherwise wide-bandwidth performance of the arrays. Using a simulation method developed by Schaubert (see Univ. of Massachusetts Antenna Lab. Report, 1992), the operation and troublesome behavior of notch antenna arrays are studied. This paper presents discoveries related to an element resonance that is induced by gaps in the metal that forms the array elements.<>
Keywords :
antenna phased arrays; digital simulation; electromagnetic wave polarisation; resonance; scanning antennas; simulation; array elements; element resonance; gap-induced element resonance; notch antennas; simulation method; single-polarized arrays; wide-bandwidth; wide-bandwidth performance; wide-scanning phased arrays; Antenna arrays; Bandwidth; Dielectric substrates; Impedance; Mutual coupling; Narrowband; Phased arrays; Polarization; Resonance; Resonant frequency;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1994. AP-S. Digest
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-7803-2009-3
DOI :
10.1109/APS.1994.407859
