In this paper, a novel structure of One-Third-Mode Substrate Integrated Waveguide Resonator (OTMSIWR) is first proposed, which reduces about 65% size. Based on the OTMSIWR, a single-band bandpass filter (BPF) operats at 4.55GHz is designed. The single-band BPF has a wide and deep upper stopband. Further, a dual-band BPF using high mode technology based on the single-band filter is designed. The...

In this paper, a compact plasmonic metamaterial absorber for terahertz frequencies is proposed and simulated. The absorber is based on metamaterial graphene structures, and benefits from dynamically controllable properties of graphene. Through patterning graphene layers, plasmonic resonances are tailored to provide a dual band as well as an improved bandwidth absorption. Unit cell of the design...

Using composite right-left handed (CRLH) transmission line concept, a novel miniaturized dual notch band filter (DNBF) is proposed. The suggested DNBF consists of an interdigital transmission line (ITL), split ring resonators (SRRs) and complementary split ring resonators (CSRRs). Since the resonance frequency of the SRRs and CSRRs are quite independent of each other, the dual notch bands of th...

Dual-Band Reflectarrays Using Microstrip Ring Elements and Their Applications with Various Feeding Arrangements. (August 2006) Chul Min Han, B.S., Korea University Chair of Advisory Committee: Dr. Kai Chang In recent years there has been a growing demand for reduced mass, small launch volume, and, at the same time, high-gain large-aperture antenna systems in modern space-borne applications. Thi...

A dual-band monolithic voltage-controlled oscillator (VCO) has been fabricated by using the 0.18 lm 1P6M CMOS technologies. The switching transistors concept used in the tank circuit realizes the dual-band VCO operation. In order to reduce the phase noise, the pMOS transistors were used in the VCO design. The dual-band VCO demonstrates the phase noise (100 kHz offset) of )98 dBc/Hz at 2.6 GHz a...

A stacked rectangular microstrip antenna with a shorting plate is proposed as a car antenna for dual band (VICS and ETC) operation in the ITS. The proposed antenna has the proper radiation patterns for the VICS and ETC. The antenna is small in size and effective in dual band operation. key words: stacked microstrip antenna with a shorting plate, dual band operation, vehicle information and comm...

This dual-band CMOS receiver for GSM and DCS1800 applications incorporates hardware sharing between two paths to reduce the number of off-chip components [1]. The receiver is an extension of the Weaver single-sideband architecture [2]. Utilized in References 3 and 4, the Weaver architecture performs two consecutive quadrature downconversion operations on the signal and the image such that if th...

Band-notch characteristic has been of great interest recently to overcome the electromagnetic interference of Ultra-wideband systems (UWB) with other existing ones. In this paper, we present a novel microstrip-fed antenna with band rejection property appropriate for UWB applications. Band-notch characteristic has been achieved by adding a rectangular resonant element to the ground section. A pr...