This paper is divided into two sections, in the first section, a new SIW and half-mode band-pass filters based on complementary hexagonal metamaterial cells (C-HMCs) are proposed. Firstly, analyzed case of using C-HMC four these cells. Secondly, HMSIW tunable BPF studied optimized. The size half mode reduced by almost 50%. filter design has very high insertion loss about -0.4 dB, significant tr...

For the design of Band pass FIR filters complex calculations are involved. Mathematically, by substituting the value of pass-band ripple, stop band attenuation, pass-band frequency F1, pass-band frequency F2, sampling frequency in any of the methods from window method, frequency sampling method or optimal method we can get the values of filter coefficients h(n). Here, window method is used in w...

This paper presents the methodology for the design of Low pass FIR digital filter using hybrid Differential Evolution (DE) method. It is an evolutionary algorithm that exhibits the features of both the basic DE and HookeJeeves exploratory move to attain the optimal solution. The basic DE and exploratory move have the capability to exploit and explore the search space to design the optimal filte...

In this paper, a simple method and structure to design a dual-band bandpass filter (BPF) by using a dual feeding structure and embedded uniform impedance resonator (UIR) is presented. In this structure, two passbands can be designed individually and several transmission zeros can be created to improve the band selectivity and stopband performance. The first passband is determined by the dual fe...

In this paper, the utilization of common fabrics for manufacturing e-textile metamaterial is investigated. The proposed design based on a transmission line loaded with split-ring resonators (SRRs) cotton substrate filter signal application. provides stop band between 2.7 GHz and 4.7 GHz, considering four stage SRR topology. Experimental results showed levels higher than −30 dB compact embroider...

...............................................................................................ii Acknowledgments...................................................................................iii Chapter 1: Introduction...............................................................................1 Chapter 2: Metamaterials........................................................................

Complementary infinite-impulse response (IIR) filter pairs can be synthesized to generate power-complementary, allpass complementary, or magnitude-complementary filter pairs (see, e.g., [1]). A very attractive alternative to generate a power-complementary low-pass/high-pass IIR filter pair is to use lattice wave digital (LWD) filters (parallel connections of two all-pass filters) [2]–[4]. Usual...

In this article, a compact dual-band bandpass filter (BPF) using coupled open-loop resonators and an embedded center-grounded stepped-impedance resonator (CGSIR) is proposed. This filter operates at 2.1/5.2 GHz for WCDMA/WLAN applications. The first passband is generated by the proposed CGSIR, and the second one is created by the coupled open-loop resonators. Each passband can be controlled ind...

—The impact of the type of implementation is considered on the IR-UWB channel capacity. This study is lead for analog and mostly digital implementation. Key parameters and theirs impacts on the channel capacity are exposed in each case: data converters for mostly digital implementations and pulse generators capabilities for analog implementations. These two implementations are compared from a d...