Morteza Rezaee

Hakim Sabzevari University · Department of Electrical Engineering

In this article, resonators based on air-filled rectangular cavity consisting of one perfect magnetic conductor (PMC) wall and the rest of walls as the perfect electric conductor (PEC) are proposed. The proposed cavity can be engraved in the top or bottom metal plate of a gap waveguide structure, and the PMC wall is realized by the periodic metalli...

A microwave pressure sensor based on variations in the transmission zero of a microstrip circuit is proposed in this article. The structure of the sensor is consisting of a microstrip line connected in parallel to a single stub, which the stub is terminated in a reactive load. When the length of stub is around quarter‐wavelength, the frequency of t...

In this article, a simple single-layer substrate integrated waveguide diplexer is proposed in which a dual mode cavity is used as a junction. A square substrate integrated waveguide cavity with corner cut perturbation is as the dual mode cavity and the odd and even modes of this cavity are a part of the receiver and transmitter channel filters, res...

In this article, a simple approach for synthesis of coupling matrix of dual mode dual band filters is presented. Odd and even modes of dual mode cavities are used as basis of this coupling matrix. Each mode of cavities is coupled to the same mode of the adjacent cavity independent from the other mode and hence, two separate paths, odd path and even...

In this paper, application of a Defected Ground Structure (DGS) in realization of one and two dimensional (1D and 2D) microwave displacement sensors is presented. A CPW line with two slots along the line that generate a Transmission Zero (TZ) in the transmission response is printed on a fixed substrate. A metallic patch is also printed on the botto...

In this paper, a microwave displacement sensor that is based on electromagnetic bandgap structure is proposed. The periodic air holes realized in a silicon substrate cause bandgap in the transmission response of coplanar waveguide (CPW) line printed on this substrate. The proposed sensor consists of a CPW line loaded by periodic air holes along the...

In this letter, a simple approach for design and realization of dual mode substrate integrated waveguide (SIW) bandpass filter of order higher than two is presented. The dual mode resonators are square SIW cavities perturbed by corner cut perturbation. In the coupling configuration of the proposed filter, the odd and even modes of the perturbed cav...

In this article, a novel dual mode dual band substrate integrated waveguide (SIW) filter is presented. Dual band operation of the filter is realized by providing two paths for the input signal to the output port. The signals of two paths have opposite sign and equal amplitude at a frequency between two bands and hence, a transmission zero is genera...

A method of 'mode shifting' is presented for realisation of triple-mode and dual-mode filters, in which the resonant frequency of one mode is shifted near to the resonant frequency of another mode using a perturbation. To realise a triplemode filter, a single-layer substrate-integrated waveguide (SIW) square cavity is perturbed by introducing vias...

In this paper, a new dual band dual polarized probe fed Dielectric Resonator Antenna (DRA) exciting by substrate integrated waveguide (SIW) is presented. The design is based on the degenerated modes TE102 and TE201, which are co-exist in the SIW square cavity and adjustedby a corner cut. In the proposed antenna only one input port is used for two b...

In this paper a new SIW cavity for dual mode operation is presented. With introduction of a perturbation in a square SIW cavity, the resonant frequency of the first mode (TE101) is shifted to near the second mode (TE102). By cutting the perturbed structure along the even symmetry axis of these modes, a dual mode filter based on HMSIW structure is r...