Comparison of two SiGe 2-stage E-band Power Amplifier Architectures

Forskningsoutput: Kapitel i bok/rapport/Conference proceedingKonferenspaper i proceeding

Abstract

This paper presents simulation and measurement results for two 2-stage E-band power amplifiers implemented in 0.18um SiGe technology with fT = 200 GHz. To increase the power gain by mitigating the effect of the base-collector capacitance, the first design uses a differential cascode topology with a 2.7 V supply voltage. The second design instead uses capacitive cross-coupling of a differential common emitter stage, previously not demonstrated in mm-wave SiGe PAs, and has a supply voltage of only 1.5V. Low supply voltage is advantageous since a common supply can then be shared between the transceiver and the PA. To maximize the power gain and robustness, both designs use a transformer based interstage matching. The cascode design achieves a measured power gain, S21 , of 16 dB at 92 GHz with 17GHz 3-dB bandwidth, and a simulated saturated output power, Psat , of 17 dBm with a 16% peak PAE. The cross-coupled design achieves a measured S21 of 10 dB at 93 GHz with 16 GHz 3-dB bandwidth, and a simulated Psat, of 15 dBm with 16% peak PAE. Comparing the measured and simulated results for the two amplifier architectures, the cascode topology is more robust, while the cross-coupled topology would benefit from a programmable cross-coupling capacitance.

Detaljer

Författare
Enheter & grupper
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Elektroteknik och elektronik

Nyckelord

  • PA, E-band, SiGe
Originalspråkengelska
Titel på värdpublikationIEEE Asia Pacific Conference on Circuits and Systems, APCCAS 2016
FörlagInstitute of Electrical and Electronics Engineers Inc.
Sidor666-669
Antal sidor4
Volym13
ISBN (elektroniskt)978-150901570-2
StatusPublished - 2017
PublikationskategoriForskning
Peer review utfördJa
EvenemangIEEE ASIA PACIFIC CONFERENCE ON CIRCUITS AND SYSTEMS (APPCAS 2016) - Ramada Plaza Jeju Hotel, Jeju Island, Sydkorea, Republiken Korea
Varaktighet: 2016 okt 252016 okt 28

Konferens

KonferensIEEE ASIA PACIFIC CONFERENCE ON CIRCUITS AND SYSTEMS (APPCAS 2016)
LandSydkorea, Republiken Korea
OrtJeju Island
Period2016/10/252016/10/28