Dual-band bandpass filters featuring compact size and flexible frequency choice are demonstrated using resonators based on slotted ground structures. Two resonators based on slotted ground structures form the basis of the filter design. The resonators allow the back-to-back and face-to-face embedding configuration, hence, greatly reduces the physical size of the filters. By changing the sizes o...

An analytical technique for extracting phase, visibility, and amplitude information as needed for interferometric astrometry for the Space Interferometry Mission (SIM) is presented. This model accounts for a number of physical and instrumental effects and is valid for the general case of a bandpass filter. I was able to obtain a general solution for polychromatic phasors and to address the prop...

Abstract—A novel dual-mode bandpass filter (BPF) using stubloaded defected ground open-loop resonator is proposed in this article. Defected arrow-shaped stub is loaded to a defected ground openloop resonator, and two non-degenerate modes are excited for dualmode characteristics. Based on evenand odd-mode theory, dualmode characteristics of the resonator is analyzed. Design equations for the def...

A lowpass-bandpass (LP-BP) diplexer with one lowpass channel (LPC) and bandpass (BPC) is presented. The lumped-element dual-resonance resonator as common proposed to connect inductors, capacitors LC constitute the desired channels. LPC design combined parameters optimization transformation method, BPC can be developed using classical theory of coupled-resonator filter. As an example, a 0.9 / 1....

F9 l is described by, x9 l (t) = P n x(n)9l(t): Let Wl = Span f9l(t 0 n)g. Then, the interpolation with 9l(t) is easily seen to equivalent to the Wavelet-Galerkin approximation to the shift operator on L 2 (IR) restricted to Wl. Moreover, in the multiplicity M case, we have an ecient M-adic interpolation scheme, similar to the dyadic interpolation scheme discussed in Section. 2.. In this case, ...

A compact and sharp rejection UWB microstrip bandpass filter is developed using left handed metamaterials. For realizing a backward-wave propagation medium, two split ring resonator (CSRR) in the back substrate side and also one series capacitor etched in the host line, are used to produce a negative effective ε and μ, simultaneously. Moreover, in the proposed structure, two doublets parallel c...