This paper presents the design, simulation, fabrication and measurement of a wideband bandpass filter with wide stopband performance operating at 3.5GHz. The proposed filter consists of two parallel coupled lines (T-PCL) centred by T-inverted shape. The location of transmission zeros can be adjusted by varying the physical lengths of T-inverted shape to improve the filter selectivity. The wide ...

Substrate integrated waveguides (SIWs) have been proposed and applied to develop a two-way out-ofphase power divider in this paper. This newly proposed structure shows good performance in wide frequency range from 8.6 GHz to 10.6 GHz. The proposed multilayer SIW out-of phase power divider consists of two layer of substrates of Rogers 5880 with thickness of 0.508 millimeters. The input at the up...

The design and fabrication of a wideband millimetre-wave 0-dB coupler is proposed in this paper using gap waveguide technology for low-loss high-power applications 30-GHz frequency band. To overcome the challenges frequencies, technique utilised. Two waveguide-based coaxial- waveguide-fed couplers are designed with broadband performance, high return loss, acceptable coupling flatness isolation....

─ In this paper, the design process of a novel Wilkinson power divider is presented. The proposed power divider features a simple structure with open stubs at each port. With slight changes of the dimensions of open stubs, designed power divider can suppress combinations of each two desired order harmonic simultaneously. From the measured results, 45 dB and 43 dB suppression for 3 and 5 harmoni...

A fully-integrated bandpass filter using Q-enhanced and semi-passive inductors is design, implemented and verified experimentally in a standard 0.18-μm CMOS process. The inductors achieve high-Q factors by using a tapped-inductor feedback technique to produce negative resistances. Compared with conventional transformer feedback, the proposed technique not only compensates resistive losses with ...

A novel compact diplexer based on mixed-mode isosceles right triangular (IRT) substrate integrated waveguide (SIW) cavities is presented. dual-mode IRT SIW junction cavity direct-coupled with two single-mode for lower and upper channels, respectively. The has third-order filtering centred at 16 18.3 GHz 400 422 MHz bandwidths. in-band measured return insertion losses are 19 dB/1.3 dB in the ban...

In this paper, we present a dual-band microstrip bandpass filter (BPF) with an improved stopband, which was constructed by quad-mode stub-loaded resonator (SLR). Since the SLR is able to produce multiresonance within single unit, area saving significant. The proposed implemented two stubs allocated at symmetry places, thus even-/odd-mode can be applied analysis resonance. Moreover, shift spurio...

It makes swept insertion and return loss measurements simultaneously, overa wide frequency range. TO THE MICROWAVE ENGINEER, an instru ment that measures insertion and return loss simultaneously, over a broad band, would be as useful as is the voltmeter to other electronic special ists, provided it is made practical in several im portant ways. • Its measurements must really refer to the micro...

This brief reports a compact DC-110GHz single-pole single-throw (SPST) switch in 22nm FDSOI CMOS technology. The adopts solely three n-MOSFETs, two of them with special device option to reduce the substrate parasitic effects, and third n-MOSFET parallel gate resistance series improve isolation. Unlike prior wideband mmwave switches, it does not make use any large passive components, such as spi...