Compact planar microstripline branch-line and rat-race couplers

KW Eccleston, SHM Ong - IEEE Transactions on microwave …, 2003 - ieeexplore.ieee.org
Both branch-line and rat-race couplers are easily realized using planar circuit technology as
they employ only transmission lines without additional components. However, as the …

Distributed lumped loads and lossy transmission line model for wideband spiral antenna miniaturization and characterization

M Lee, BA Kramer, CC Chen… - IEEE Transactions on …, 2007 - ieeexplore.ieee.org
A lossy transmission-line model that incorporates the radiation resistance of small loop
antennas is introduced to characterize the input impedance of a spiral antenna over a large …

Development of 60-GHz front-end circuits for a high-data-rate communication system

H Zirath, T Masuda, R Kozhuharov… - IEEE Journal of Solid …, 2004 - ieeexplore.ieee.org
Recent results from a Swedish program for development of 60-GHz monolithic microwave
integrated circuits (MMICs) for high-data-rate communication links are presented. Front-end …

Distributed class-J power amplifiers

A Alizadeh, A Medi - IEEE Transactions on Microwave Theory …, 2016 - ieeexplore.ieee.org
This paper presents the design and implementation of a distributed class-J power amplifier
(DJPA) in a 0.25-μm AlGaAs-InGaAs pHEMT technology. Class-J mode of operation is …

High-purity 60-GHz-band single-chip/spl times/8 multipliers in pHEMT and mHEMT technology

C Karnfelt, R Kozhuharov, H Zirath… - IEEE Transactions on …, 2006 - ieeexplore.ieee.org
Two single-chip multiplier by eight (times8) monolithic microwave integrated circuits
(MMICs) for 52-62-GHz output frequency are presented. The MMICs are designed and …

Compact dual-fed distributed power amplifier

KW Eccleston - IEEE transactions on microwave theory and …, 2005 - ieeexplore.ieee.org
The dual-fed distributed amplifier (DFDA) allows efficient combining of field-effect transistors
(FETs) at the device level without using n-way power combiners. However, the FETs must be …

Voltage-tunable thin film graphene-diode-based microwave harmonic generator

M Saeed, A Hamed, P Palacios, B Uzlu… - IEEE Microwave and …, 2021 - ieeexplore.ieee.org
This work presents the design, implementation, and characterization of the first thin-film
integrated tunable microwave harmonic generator. The design is realized by exploiting the …

Miniaturized coupled-line couplers using uniplanar synthesized coplanar waveguides

CC Wang, CH Lai, TG Ma - IEEE transactions on microwave …, 2010 - ieeexplore.ieee.org
A novel slow-wave synthesized coplanar waveguide (CPW), namely, the uniplanar
synthesized CPW, is investigated in this paper. Quasi-lumped CPW inductors and capacitors …

A miniaturized K-band balanced frequency doubler using InGaP HBT technology

DW Kang, DH Baek, SH Jeon… - IEEE MTT-S …, 2003 - ieeexplore.ieee.org
AK band balanced frequency doubler using InGaP HBTs is presented, which features high
conversion gain, wide bandwidth and high rejection of fundamental signal. To obtain the …

[PDF][PDF] A high spectral purity GaAs pHEMT MMIC balanced frequency quadrupler

T Masuda, V Lowenmark, H Zirath… - GAAS IC …, 2003 - researchgate.net
A High Spectral Purity GaAs PHEMT MMIC Balanced Frequency Quadrupler Page 1 A High
Spectral Purity GaAs PHEMT MMIC Balanced Frequency Quadrupler Toru Masuda + Vesa …