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In this paper, a novel microwave planar integration scheme is proposed based on SIW technology. All the passive components in RF transceiver are implemented using SIW, including antenna, duplexer, TX/RX filters and LO power divider. A demonstration X-band transceiver is designed in a single layer printed circuit board. The design of SIW components and RF/IF circuits are discussed, as well as various...
The liquid crystal polymer (LCP) is a fairly new and promising thermoplastic organic material which has impressive electrical and mechanical characteristics such as low dielectric loss, stable dielectric constant across a frequency range from DC to 110 GHz, low water absorption and low thermal expansion coefficient. It can be used as a low-cost technology for high-volume large-area processing and...
In this paper, a planar triplexer based on the substrate integrated waveguide (SIW) technology for TD-SCDMA applications is proposed. The triplexer consists of three inductive window SIW bandpass filters, operated at bands of 1.88GHz-1.92GHz, 2.01GHz-2.025GHz and 2.3GHz-2.4GHz, respectively, and an optimized matching circuit. Moreover, by introducing a stepped-impedance microstrip lowpass filter,...
In this paper, a novel half mode substrate integrated waveguide (HMSIW) bandpass filter (BPF) is presented. A C-band four-pole filter is simulated by using HFSS and fabricated with a single layer standard printed circuit board (PCB) process. Compared with SIW BPF, the HMSIW BPF with nearly one-half reduction in size has a wider stopband. The measured results which show good agreement with the simulated...
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 feed lines. The prototypes of UWB (5 GHz-10...
In this paper, the substrate integrated waveguide (SIW) is investigated into the effects of tolerances using the sensitivity approach. The changes in characteristics of transmission line due to the tolerances of its parameters have been analyzed to evaluate the worst case behavior. A set of sensitivity curves are given to help the design procedure and used to determine the tradeoff between performances...
A six-port junction is designed using the newly proposed half-mode substrate integrated waveguide (HMSIW) technology. HMSIW origins from the substrate integrated waveguide (SIW) and have the advantage of reduced size. In this structure, a HMSIW hybrid 3dB coupler and phase shifting element are designed as fundamental building blocks. A HMSIW six-port junction circuit operating at 11.5~13.5 GHz is...
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