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This paper reports on two novel broadband vertical transitions on flexible organic Liquid Crystal Polymer (LCP) substrate which show superior characteristics- Return Loss below -10 dB, Insertion Loss better than -2.5 dB from 60 to 100 GHz. The presented Coplanar Waveguide-Coplanar Waveguide-Microstrip (CPW-CPW-MSTRIP) and CPW-CPW-CPW 3D transitions require strategically placed vias and tapering of...
The purpose of this paper is to describe an approach for creating the first truly wideband (10-90 GHz), high performance, compensated 90deg bends for planar transmission lines fabricated on liquid crystal polymer (LCP) for use with mm-wave applications. These bends are very critical components for the miniaturization of high performance packages used for integrated multi-layer millimeter-wave front-ends...
A modification of the Wilkinson power divider is presented that eases planar implementation while maintaining performance. By adding transmission lines between the resistor and the quarter-wave transformers of the traditional design, a range of valid solutions exists that meet the conditions of being reciprocal, isolated between the output ports, and matched at all ports. The proposed design is particularly...
Embedded transmission lines are commonly used in silicon radio frequency integrated circuits to reduce insertion loss and decrease circuit size. In this paper, experimental measurements and finite difference time domain (FDTD) analysis are used to show that embedded inverted microstrip lines are not suitable for use above a few GHz
In this paper, the development of three-dimensional (3-D) millimeter-wave functions in multilayer low temperature cofired ceramic (LTCC) and liquid crystal polymer (LCP) technologies is presented for millimeter-wave compact and easy-to-design passive solutions for high data rate wireless systems. Both ceramic and organic technologies are candidates for the 3-D integration of system-on-package (SOP)...
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