COMPACT SPATIAL BAND-PASS FILTERS USING FREQUENCY SELECTIVE SURFACES

Compact Microstrip Dual-mode Dual-band Band-pass Filters Using Stubs Loaded Cou- Pled Line

This paper presents two novel dual-mode dual-band bandpass filters (BPFs) by using stubs loaded coupled line. The analytical equations of their transmission poles and transmission zeros are given by the classical even-/odd-mode method. Design rules for two dual-band BPFs are also given, which show the easily tuned passband frequency locations and in-band performance. As examples, two dualmode d...

High-performance variable band-pass/band-stop state-space digital filters using Gramian-preserving frequency transformation

Design of Low Frequency Band Pass Filters for SAR applications

Technologies have advanced rapidly in the field of digital signal processing due to advances made in high speed, low cost digital integrated chips. These technologies have further stimulated ever increasing use of signal representation in digital form for purposes of transmission, measurement, control and storage. Design of digital filters especially adaptive or semi adaptive is the necessity o...

Automating the Design of a Band-pass Spectral Filter with Frequency Selective Surfaces on Inhomogeneous Substrates

This paper focuses on the design of a Thermo-Photovoltaic filter with band-pass characteristics in the form of a Frequency Selective Surfaces with cascaded inhomogeneous dielectric substrates. Desired performance is achieved via the integration of a topology design methodology known as the density method with robust finite element-boundary integral (FE-BI) simulators. INTRODUCTION Frequency Sel...

New UWB Shielding with Frequency Selective Surfaces

In this paper a Frequency Selective Surface (FSS) as a UWB electromagnetic shield is introduced. The proposed FSS comprises a quasi-J.C-Jerusalem Cross- and a copper ring, which are located at both sides of a FR4 substrate and can represent a S.E -Shielding Effectiveness- better than 20dB in 90% bandwidth of Ultra Wide Band frequency. This structure is compact and thin. Each cell comprises J.C ...