An IC based self-oscillating mixer for telecommunications

Mohammad-reza Tofighi, Afshin S. Daryoush

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This paper presents the measurement results of a 2.5 GHz push-pull self-oscillating mixer (SOM) circuits with internal and external LC resonators. This SOM is used for injection locked phase locked loop (ILPLL) applications, where a separate phase detector (PD) circuit is not required. This SOM design was fabricated using an InGaP/GaAs HBT foundry process. Output power of about 0 dBm is attained over a large frequency tuning range. The power consumption of the SOM is typically about 60 mW using a 5 V supply. The voltage down-conversion gain and power up-conversion gain of up to 15 and 11.5 dB are measured for the circuit. It is also observed that there is a compromise between obtaining a high conversion gain and low close-in to carrier phase noise. It is demonstrated that a phase noise improvement of up to 6 dB can be achieved by implementing an external LC resonator.

Original languageEnglish (US)
Title of host publicationProceedings - 2004 IEEE Radio and Wireless Conference, RAWCON
EditorsG. Heiter
Pages331-334
Number of pages4
StatePublished - 2004
EventProceedings - 2004 IEEE Radio and Wireless Conference, RAWCON - Atlanta, GA, United States
Duration: Sep 19 2004Sep 22 2004

Other

OtherProceedings - 2004 IEEE Radio and Wireless Conference, RAWCON
CountryUnited States
CityAtlanta, GA
Period9/19/049/22/04

Fingerprint

Mixer circuits
Phase noise
Telecommunication
Resonators
Detector circuits
Networks (circuits)
Heterojunction bipolar transistors
Foundries
Phase locked loops
Electric power utilization
Tuning
Electric potential

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Tofighi, M., & Daryoush, A. S. (2004). An IC based self-oscillating mixer for telecommunications. In G. Heiter (Ed.), Proceedings - 2004 IEEE Radio and Wireless Conference, RAWCON (pp. 331-334). [P2.18]
Tofighi, Mohammad-reza ; Daryoush, Afshin S. / An IC based self-oscillating mixer for telecommunications. Proceedings - 2004 IEEE Radio and Wireless Conference, RAWCON. editor / G. Heiter. 2004. pp. 331-334
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Tofighi, M & Daryoush, AS 2004, An IC based self-oscillating mixer for telecommunications. in G Heiter (ed.), Proceedings - 2004 IEEE Radio and Wireless Conference, RAWCON., P2.18, pp. 331-334, Proceedings - 2004 IEEE Radio and Wireless Conference, RAWCON, Atlanta, GA, United States, 9/19/04.

An IC based self-oscillating mixer for telecommunications. / Tofighi, Mohammad-reza; Daryoush, Afshin S.

Proceedings - 2004 IEEE Radio and Wireless Conference, RAWCON. ed. / G. Heiter. 2004. p. 331-334 P2.18.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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N2 - This paper presents the measurement results of a 2.5 GHz push-pull self-oscillating mixer (SOM) circuits with internal and external LC resonators. This SOM is used for injection locked phase locked loop (ILPLL) applications, where a separate phase detector (PD) circuit is not required. This SOM design was fabricated using an InGaP/GaAs HBT foundry process. Output power of about 0 dBm is attained over a large frequency tuning range. The power consumption of the SOM is typically about 60 mW using a 5 V supply. The voltage down-conversion gain and power up-conversion gain of up to 15 and 11.5 dB are measured for the circuit. It is also observed that there is a compromise between obtaining a high conversion gain and low close-in to carrier phase noise. It is demonstrated that a phase noise improvement of up to 6 dB can be achieved by implementing an external LC resonator.

AB - This paper presents the measurement results of a 2.5 GHz push-pull self-oscillating mixer (SOM) circuits with internal and external LC resonators. This SOM is used for injection locked phase locked loop (ILPLL) applications, where a separate phase detector (PD) circuit is not required. This SOM design was fabricated using an InGaP/GaAs HBT foundry process. Output power of about 0 dBm is attained over a large frequency tuning range. The power consumption of the SOM is typically about 60 mW using a 5 V supply. The voltage down-conversion gain and power up-conversion gain of up to 15 and 11.5 dB are measured for the circuit. It is also observed that there is a compromise between obtaining a high conversion gain and low close-in to carrier phase noise. It is demonstrated that a phase noise improvement of up to 6 dB can be achieved by implementing an external LC resonator.

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Tofighi M, Daryoush AS. An IC based self-oscillating mixer for telecommunications. In Heiter G, editor, Proceedings - 2004 IEEE Radio and Wireless Conference, RAWCON. 2004. p. 331-334. P2.18