A Fully Integrated 384-Element, 16-Tile, [Formula Omitted]-Band Phased Array With Self-Alignment and Self-Test

This paper describes the design and implementation of a scalable [Formula Omitted]-band phased-array system, with built-in self-alignment and self-test, based on an RFIC transceiver chipset manufactured in the TowerJazz 0.18-[Formula Omitted] SiGe BiCMOS technology with [Formula Omitted] of 240/270...

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Bibliographic Details
Published inIEEE journal of solid-state circuits Vol. 54; no. 9; p. 2419
Main Authors Shahramian, Shahriar, Holyoak, Michael J, Singh, Amit, Baeyens, Yves
Format Journal Article
LanguageEnglish
Published New York The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 01.01.2019
Subjects
Analog circuits
Antenna arrays
Boresights
Chips (electronics)
Circuit boards
Circuit design
Constellations
Diagnostic systems
Down-converters
Effective isotropic radiated power (EIRP)
Frequency multipliers
Misalignment
Phase locked loops
Phase shifters
Phased arrays
Printed circuits
Self alignment
Self tests
Statistical analysis
Synchronism
Tiles
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Summary:This paper describes the design and implementation of a scalable [Formula Omitted]-band phased-array system, with built-in self-alignment and self-test, based on an RFIC transceiver chipset manufactured in the TowerJazz 0.18-[Formula Omitted] SiGe BiCMOS technology with [Formula Omitted] of 240/270 GHz. The RFIC integrates 24 phase-shifter elements (16TX/8RX or 8TX/16RX) as well as direct up- and down-converters, phase-locked loop with prime-ratio frequency multiplier, analog baseband, beam lookup memory, and diagnostic circuits for performance monitoring. Two organic printed circuit board (PCB) interposers with integrated antenna sub-arrays are designed and co-assembled with the RFIC chipsets to produce a scalable phased-array tile. Tiles are phase-aligned to one another through a daisy-chained local oscillator (LO) synchronization signal. Statistical analysis of the effects of LO misalignment between tiles on beam patterns is presented. Sixteen tiles are combined onto a carrier PCB to create a 384-element (256TX/128RX) phased-array system. A maximum saturated effective isotropic radiated power (EIRP) of 60 dBm (1 kW) is measured at boresight for the 256 transmit elements. Wireless links operating at 90.7 GHz using a 16-QAM constellation at a reduced EIRP of 52 dBm produced data rates beyond 10 Gb/s for an equivalent link distance in excess of 250 m.
ISSN:0018-9200
1558-173X
DOI:10.1109/JSSC.2019.2928694