November 30, 2015

A 16-Element W-Band Phased Array Transceiver Chipset with Flip-Chip PCB Integrated Antennas for Multi-Gigabit Data Links

  • Baeyens Y.
  • Holyoak M.
  • Shahramian S.

This paper describes the design and implementation of a W-band phased array system with integrated PCB antennas capable of multi-gigabit spectrallyefficient wireless communication. The chipset is manufactured in a 0.18um SiGe BiCMOS technology with fT/fMAX of 240/270GHz and is flip-chipped onto an organic PCB with integrated antenna arrays. Each chip is equipped with 16-transmit/4-receive or 16-receive/4-transmit calibrated phase shifter elements, direct up- and down-converters plus a half-rate phase locked loop. Each chip operates from 1.5V and 2.5V supplies and consumes xW and xW in transmit and receive mode respectively. The transmitter EIRP is 34dBm in each polarization. A 4.8Gb/s QPSK wireless link in each polarization is demonstrated at a distance of 20-meters.

View Original Article

Recent Publications

January 01, 2018

Fair Dynamic Spectrum Management for QRD-Based Precoding with User Encoding Ordering in Downstream Transmission

In next generation DSL networks such as, employing discrete multi-tone transmission in high frequencies up to 212 MHz, the crosstalk among lines reaches very high levels. To precompensate the crosstalk in downstream transmission, QRD-based precoding has been proposed as a near-optimal dynamic spectrum management (DSM) technique. However, the performance ...

January 01, 2018

Practical Mitigation of Passive Intermodulation in Microstrip Circuits

This paper presents new experimental evidence and a novel practical approach for mitigation of passive intermodulation (PIM) in microstrip circuits fabricated on commercial printed circuit board laminates. The mechanisms of distributed PIM in microstrip circuits are reviewed and a phenomenology of PIM generation due to locally enhanced electromagnetic fields at ...

January 01, 2018

Efficient Cooperative HARQ for Multi-Source Multi-Relay Wireless Networks

In this paper, we compare the performance of three different cooperative Hybrid Automatic Repeat reQuest (HARQ) protocols for slow-fading half-duplex orthogonal multiple access multiple relay channel. Channel State Information (CSI) is available at the receiving side of each link only. Time Division Multiplexing is assumed, where each orthogonal transmission occurs ...