In the last decade, the filter community has innovated both design techniques and the
technology used for practical implementation. In design, the philosophy has become “if you …

In this article, we introduce a synthesis-based design approach for waveguide filters,
including singlets. As is known, a singlet block comprises one resonator coupled to source …

Multiband bandpass filters (BPFs) and multiplexers are essential front-end modules in the
development of multifunction, multistandard, and multiband wireless communication …

This article presents an analytical method for the synthesis of a low-pass prototype filter
constituted by cascaded-tuplets, including resonant node (RN) and nonresonant node …

Resonances and reactive effects due to higher-order modes represent a rather popular
concern among microwave engineers dealing with the design and modeling of passive …

This article proposes a direct coupling matrix synthesis approach for filters with cascaded
singlets. A sequence of elementary matrix transformations is applied in the synthesis …

This letter presents an analytical procedure for the synthesis of a low-pass prototype filter
constituted by the cascade of doublet blocks coupled by inverters or shunt reactances. The …

Substrate integrated waveguide (SIW) technology [1],[2] is a well established and successful
approach for implementing planar microwave filters with very stringent requirements in terms …

This paper includes two new microstrip filter configurations for high frequency and Ultra-
Wide Band applications. The first proposed filter is a composition of four parallel open …

This paper presents a review of the recent advances in the field of substrate integrated
waveguide (SIW) filters, with particular emphasis on the techniques adopted to increase the …