Multimode antennas for anti-jamming systems
S. E. Bankov1, A. G. Davydov 2,
A. A. Kurushin 3, K. B. Papilov 2, S.
V. Samkov 2
1 Kotelnikov
Institute of Radio-engineering and Electronics of RAS
2 Moscow
Design Bureau "Kompas"
3
National Research University "MPEI"
The paper is received on November 30, 2015
Abstract. Investigation and design
of two multimode printed antennas – single and dual layered are considered. These
antennas are intended for use in anti-jamming and direction finding systems.
Proposed antennas are analyzed with help of an approximate resonator model. It
is demonstrated numerically that these antennas may form radiation pattern with
null in the required arbitrary direction for waves of both orthogonal
polarizations. It is demonstrated with help of a numerical simulation that in
the proposed antenna three dominant eigenmodes may be tuned to have identical
resonance frequencies and Q-factors close to Q-factor of a conventional patch
antenna. Application of three ports provides well matching and independent
excitation of eigenmodes. Results of experimental investigation of dual layered
printed antenna are presented.
Keywords:
printed antenna, multimode
antenna, anti-jamming, phase direction-finding.