Browse Conferences
Flexible Architectures for Concurrent Reception of Multiple RF Carriers and Compressed-Sampling Signal Detection in Frequency and Direction-of-Arrival
The modulated-clock downconversion mixer (MC-DM) and the antenna-weight-modulated phased-array (AWM-PA) are explored as key enablers of ambient-aware, opportunistic receivers in emerging 5G deployments. The benefits of the MC-DM is demonstr...
Wideband Front-End Integration and Unification of Circuit-Antenna for Simultaneous Stabilized Amplification and Steered Radiation
A wideband front-end integration of amplifying transistor within array antenna is proposed, analyzed and demonstrated in this paper, for simultaneous stabilized amplification and beam steered radiation, in a unified space. Source degenerati...
Dual-Polarized Substrate-Integrated-Waveguide Cavity-Backed Monopulse Antenna Array for 5G Millimeter-Wave Applications
This paper presents a new substrate-integrated-waveguide (SIW) cavity-backed antenna array with dual-polarization monopulse radiation patterns. The monopulse comparator is realized by using SIW magic Tee that is directly fed by the WR-15 wa...
28–32 GHz Dual-Polarized Single-Layer Microstrip Line Beamforming Network for 2×2 Beam Switching
A 2×2 dual-polarized passive analog beamforming network is presented for millimeter-wave application in the range of 28-32 GHz. Two identical 2×2 networks, one for each polarization (H and V) are integrated on a single substrate layer. High...
Advanced Packaging and its Characterization for 5G mmWave Antenna in Package
As the mmWave bands of the 5G become popular and available to the mass market, designing antenna in mmWave transceiver package becomes a popular choice. It is critical that a few key antenna design parameters must be kept in such advanced p...
Linearity-aware design of Doherty power amplifiers
The linearity is a crucial requirement of power amplifiers. At design level, it is typically assessed by means of AM/AM, AM/PM and IMR, which are extracted from 1- and 2-tone characterization. These however are not fully representative of t...
Linearity Characterizations of Highly Efficient, Infrastructure GaN Doherty Power Amplifier for 5G Applications
This paper presents a comprehensive linearity characterization scheme of highly efficient, infrastructure Gallium-Ni-tride (GaN) Doherty power amplifiers (DPA) for 5G applications. Linearization of high-power infrastructure GaN power amplif...
Envelope Tracking for 5G Mobile Handsets
The arrival of 5<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">th</sup> Generation (5G) New Radio (NR) brings challenges to Envelope Tracking (ET) systems for mobile handsets. Most notably, 5G...
Design and characterisation of an outphasing power amplifier with balun combiner
This paper presents an outphasing power amplifier using a planar balun as power combiner. The balun with bandwidth extending to and over octave was fabricated using thin film technology on alumina substrate. The design adopts a hybrid appro...
High-Performance Optically Controlled RF Switches for Advanced Reconfigurable Millimeterwave-to-THz Circuits
In this paper, optically-controlled high-performance integrated RF switches have been proposed, investigated and discussed. The switching is based on the high conductivity change (5-6 orders) due to photo-induced free-carriers in semiconduc...