Hong-Jun Tang

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A novel resonator method is presented to extract the attenuation constants of the substrate integrated waveguide (SIW) transmission lines, providing an alternative way to investigate the propagation properties of SIW. The losses of SIW transmission line and cavity resonator have been investigated with theoretical analysis. Then a formula is derived for(More)
A differential measurement technique for extracting the complex permittivity of substrate material and the effective conductivity of rough conductor surface is proposed in this paper. In this method, substrate integrated waveguide (SIW) cavity resonators having the same footprints and varied thicknesses are utilized to separate the conductor loss of the top(More)
A reflective surface with polarization rotation property is proposed in this letter. The primary function of the surface is to reflect the linearly polarized incident wave with 90° polarization rotation. The fractional bandwidth reaches up to 9.5%, with copolarization reflection coefficient better than -10 dB at normal incidence. Stable frequency(More)
A novel planar triple-mode resonator is proposed and implemented by placing an additional metallic via at the center of a circular dual-mode substrate integrated waveguide (SIW) cavity resonator. The resonant frequency of the dominant mode in the SIW cavity increases remarkably and become close to the resonant frequencies of the <formula(More)
In this paper, an Ultra-Wide Band (UWB) bandpass filter with multiple frequency band-notched characteristics is investigated. The filter is realized by combining a series of coplanar waveguide (CPW) periodic structure (PS) etched on the surface of a substrate integrated waveguide (SIW) with some split ring resonators (SRRs) placed near the input or output(More)
A compact millimeter-wave mixer module is designed using a 34-40GHz single balanced mixer MMIC and a novel folded substrate integrated waveguide (SIW) filter. The mixer module is designed and fabricated with advantages of low cost, compact configuration, and high performance. The module size is 3cm /spl times/ 3cm with an IF output amplifier. Measurement(More)
An approach for the bandwidth enhancement of a polarization rotating frequency selective surface (FSS) based on the substrate integrated waveguide (SIW) technology is proposed in this communication. Compared with the previously reported polarization rotating FSS, the passband bandwidth of the proposed FSS is enhanced from 4.6% to 7.2% by introducing a(More)
This paper presents an approach of characterization of substrate material using complementary split ring resonator (CSRR). Frequency selective surfaces made from CSRR are excited with free space radiation. The dielectric properties of substrate material can be extracted from resonant frequencies and transmission loss at resonant frequencies. In order to(More)
A low-profile orthogonally linearly tripolarized antenna consisting of two thick-slot antennas and one half-mode substrate integrated waveguide (HMSIW) antenna has been investigated. The two thick-slot antennas radiate x- and y-directional linearly polarized waves, while the HMSIW antenna contributes to the z-directional polarized wave. The low-profile(More)
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