The accurate estimates of values of electromagnetic parameters are essential to determine the final circuit speeds and functionality for designing of highperformance integrated circuits and integrated circuits packaging. In this paper, the quasi-TEM analyses of multilayer coplanar waveguide (CPW) broadside coupled-line balun are successfully demonstrated using Finite Element Method (FEM). We sp...

This paper proposes a compact microstrip Yagi-Uda antenna for 2.45 GHz radio frequency identification (RFID) handheld reader applications. The proposed antenna is etched on a piece of FR4 substrate with an overall size of 65 mm × 55 mm ×1.6 mm and consists of a microstrip balun, a dipole, and a director. The ground plane is designed to act as a reflector that contributes to enhancing the antenn...

A principle and design procedure of differential phase shifters and baluns with a specified bandwidth is given. Phase shifters and baluns proposed here comprise of two transmission lines(TL), one is conventional while the other is CRLH-TL. The operating frequency is properly chosen as to obtain a maximum bandwidth. The bandwidth is related to number of unit cells comprising CRLH-TL.A Wilkinson ...

The design of a two-stage differential cascode power amplifier (PA) for 81-86 GHz E-band applications is presented. The PA was realised in SiGe technology with fT/fmax 170/250 GHz. A broadband transformer with efficiency higher than 79.4% from 71 GHz to 96 GHz is used as a BALUN. The PA delivers a 4.5 dBm saturated output power and exhibits a 13.4 dB gain at 83.6 GHz. The input and output retur...

This paper presents a compact balun with common inductor design. The design used Wilkinson-type topology modified lumped transmission lines and to realize circuit size reduction on lossy CMOS process. Measurements of the prototype chip had reflection coefficient below 17.8 dB at all ports, an insertion loss 1.98 dB, isolation 16.8 dB. was only 0.025λ0 × 0.034λ0.

A 2.4 GHz low-power, low-noise and highly linear receiver front-end with a low noise amplifier (LNA) and balun optimization is presented. Direct conversion architecture is employed for this front-end. The on-chip balun is designed for single-to-differential conversion between the LNA and the down-conversion mixer, and is optimized for the best noise performance of the front-end. The circuit is ...

With the increasing demands of wireless communication, flexible, complex, and diversified wireless communication applications are required. However, the difficulty of enabling new wireless communication applications is the lack of low power radio frequency (RF) transmission devices, especially the RF receiver. In order to alleviate this problem, an RF low power subsampling architecture for wire...