On some broad-band microstrip resonators

Microstrip Dual-Band Bandpass Filter Using U-Shaped Resonators

Coupled resonators are widely used in the design of filters with dual-passband responses. In this paper, we present a dual-band bandpass filter using only couplings between adjacent resonators without cross-couplings. The dual-band bandpass filter with centre frequencies of 1747MHz and 1879MHz respectively is designed and fabricated using microstrip U-shaped resonators. Using the coupled resona...

Microstrip resonators

Broad Band Microstrip Antenna with Modified Patch and Ground Plane

Abstract: Microstrip antenna is low coast, light weight, and easy to connect with the electric circuit, but it have some drawbacks such as low bandwidth and low gain. In this paper planar microstrip antenna is proposed to enhanced gain and bandwidth. The new design is have modified ground plane and periodic patch. The bandwidth and gain are enhanced, when compared with the traditional rectangul...

Analysis of Microstrip Resonators

An accurate and efficient method was developed for computing the resonant frequencies of microstrip resonators. The formulation of the problem was carried out rigorously using the fullwave analysis rather than the quasi-static approximation. The characteristic equation was derived using Galerkin’s method applied in the Fourier transform domain. The accuracy of the method has been proven by comp...

A Compact Dual-band Bandstop Filter Based on Fractal Microstrip Resonators

Fractal geometries are found attractive to designers seeking for compact size microwave circuits and antennas. In this paper, Peano fractal based open-loop resonators are adopted to design dual-band microstrip band-stop filters (PSFs). The suggested filter structure is essentially based on that of the conventional open-loop rectangular microstrip resonators. The resonators of the proposed PSF s...