A broadband 25 to 42 GHz SiGe upconverter

Leigh E. Milner*, Leonard T. Hall, Sudipta Chakraborty, Charles G. Ritchie, Michael C. Heimlich

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review


A 0.13 SiGe upconverter circuit is presented that is suitable for use in broadband millimetre-wave transmitters and active phased arrays. The circuit accepts four differential IF inputs (I+, I-, Q+, Q-) in the frequency range of DC to 13 GHz. An off-chip X-band LO passes through an on-chip tripler before being used to drive the image rejection mixer. The resultant output may be placed anywhere in the frequency range of 25 to 42 GHz. When all four inputs are utilised the RF signals are combined passively at the mixer outputs to achieve an output referred P1dB compression point of +4.4 dBm without the need for additional amplifiers in the RF signal path. This paper highlights the measured bandwidth and single-tone compression characteristic of the circuit. Layout techniques are also briefly described.

Original languageEnglish
Title of host publication2020 4th Australian Microwave Symposium (AMS)
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages2
ISBN (Electronic)9781728110493
ISBN (Print)9781728110509
Publication statusPublished - 2020
Event4th Australian Microwave Symposium, AMS 2020 - Sydney, Australia
Duration: 13 Feb 202014 Feb 2020


Conference4th Australian Microwave Symposium, AMS 2020

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