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This paper presents an on-chip low-pass filter (LPF) for cognitive radio in a 130-nm SiGe BiCMOS technology. The LPF achieves a broad tuning range of 0.1–3.2 GHz with a 100 MHz step. To address gain v...
This paper presents a 90-nm CMOS radio-frequency (RF) front-end using the proposed sandwich-type concentric vortical transformer (CVT) for transmit/receive (TX/RX) switching in time-division duplexing...
We report a Monolithic GaN based Supply Modulator (SM) and verify it for envelope tracking power amplifier (ET-PA). A signal amplifier is integrated in the SM and a novel Dual-Antibootstrap Level Shif...
Linearization has become of enormous importance because of the need to efficiently send greater and greater amounts of information over a limited spectrum. It is of special value at frequencies below ...
We report two 220-GHz solid-state power amplifiers (PA, SSPA) having high output power (Pout) and record power-added-efficiency (PAE). The first amplifier (PA-1) uses a 250-nm InP HBT technology. The ...
This paper presents two distributed low-noise power-amplifier monolithic microwave integrated circuits (MMICs). The two amplifiers (DA1 and DA2) target the WR4.3 (170-260 GHz) and WR3.4 bands (220-330...
This paper describes a highly compact topology for InGaAs mHEMT based THz PA MMICs. In this context, a unique vertical DC bias distribution between the parallel common-source devices has been develope...
This paper presents a systematic design and optimization methodology to enhance the power gain of a given device towards its theoretically maximum stable power gain 4U, U as the Mason’s Unilateral pow...
This paper reports a 10-230-GHz Indium Phosphide distributed amplifier (DA) using Darlington quadruple-stacked HBTs. Stacked HBTs are combined with Darlington cells in a DA to achieve wide bandwidth o...
Permalloy-based thin films are ferromagnetic materials with excellent magnetic properties, and their detection is appealing for several applications. Here, a Scanning Microwave Microscope is used to c...