Circular Split Ring Resonator (C-SRR) Array Integrated Frequency-Notched Horn-Filtenna With Wide and Strong Rejection Band

Linear-array of circular split ring resonators (C-SRR) integrated wideband notched filtering horn antenna with very strong rejection-band is proposed in this article. The linear C-SRR array, consisting 3-sub arrays each having 4 identical C-SRR-elements, printed on a dielectric substrate and into the throat or waveguide-section standard X-band (Narada 641). Staggered arrangement multiple C-SRRs based in-line filter contributes to notch response measured rejection band (S11 < 3-dB) 315 MHz horn-filtenna. realized horn-filtenna yields co- cross- polar peak gain suppression 35.42 dB 24.6 at around centre notch-band (9.8 GHz) while pass filter, inherits impedance radiation characteristics standalone antenna. technique simple, easy integrate can be used eliminate adjacent noise/interference for faithful reception data without using any additional section.