A 312-GHz CMOS Injection-Locked Radiator with Chip-and-Package Distributed Antenna

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Liang Wu
  • Shaowei Liao
  • Quan Xue

Detail(s)

Original languageEnglish
Article number7997717
Pages (from-to)2920-2933
Journal / PublicationIEEE Journal of Solid-State Circuits
Volume52
Issue number11
Online published31 Jul 2017
Publication statusPublished - Nov 2017

Abstract

This paper presents an injected-locked THz radiator integrating a half-quadrature voltage-controlled oscillator (HQVCO), four injection-locked frequency quadruplers (ILFQs), and a chip-and-package distributed antenna (DA). At the system level, an architecture based on injection locking is employed to allow individual optimization of the output power and the phase noise. At the circuit level, intrinsic-delay compensation and harmonic boosting techniques are proposed to optimize the phase noise of the HQVCO and the output power of the ILFQs, respectively. The proposed DA composed of four exciting elements on silicon chip and a primary radiator in low-temperature co-fired ceramic (LTCC) package features a wide bandwidth of 13% and a gain of 3.8 dBi without using lens at 312 GHz. Implemented in a 65-nm CMOS process, the radiator system occupying a core area of 0.36 mm2 achieves output frequency from 311.6 to 315.5 GHz and maximum equivalent isotropically radiated power (EIRP) of 10.5 dBm while consuming 300 mW. The output phase noise measures -109.3 dBc/Hz at 10-MHz offset and the dc-to-THz efficiency is 0.42%.

Research Area(s)

  • Distributed antenna (DA), equivalent isotropically radiated power (EIRP), harmonic boosting, injection locking, intrinsic-delay compensation, phase noise, positive feedback, radiator, terahertz (THz)

Citation Format(s)

A 312-GHz CMOS Injection-Locked Radiator with Chip-and-Package Distributed Antenna. / Wu, Liang; Liao, Shaowei; Xue, Quan.

In: IEEE Journal of Solid-State Circuits, Vol. 52, No. 11, 7997717, 11.2017, p. 2920-2933.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review