RF modulator design for a low level pilot sub-system

Adaptive duplexer; RF modulator; Sapphire; Carrier feedthrough; Direct up-conversion; Duplexers; Radio frequencies; RF modulators; Silicon on sapphires; Transmitters (Tx); Modulators

Abstract :

[en] This paper presents an adaptive duplexer using cancelling instead of filtering to obtain sufficient transmitter (Tx) leakage and noise isolation in the receiver. A low level pseudo-noise (PN) pilot signal is introduced in order to adjust the cancelling coefficients. To modulate the pilot signal to radio frequencies a straightforward direct up-conversion mixer with low carrier feedthrough has been designed. This structure has been implemented in the silicon-on-sapphire (SOS) 250 nm GC process. © 2014 IEEE.

Disciplines :

Electrical & electronics engineering

Author, co-author :

Eslampanah, R.; College of Engineering and Science, Victoria University, Melbourne, Australia

Pourakbar, M.; College of Engineering and Science, Victoria University, Melbourne, Australia

Ahmed, S.; College of Engineering and Science, Victoria University, Melbourne, Australia

Redouté, Jean-Michel ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes microélectroniques intégrés

Faulkner, M.; College of Engineering and Science, Victoria University, Melbourne, Australia

Language :

English

Title :

RF modulator design for a low level pilot sub-system

Publication date :

2014

Event name :

2014 1st Australian Microwave Symposium, AMS 2014

Event date :

26 June 2014 through 27 June 2014

Audience :

International

Journal title :

Australian Microwave Symposium, Conference Proceedings

Publisher :

Institute of Electrical and Electronics Engineers Inc.

Pages :

25-26

Peer reviewed :

Peer reviewed

Funders :

TEPS - Telecommunications, Electronics, Photonics and Sensors Faculty Research Unit

Commentary :

9781479955411

Available on ORBi :

since 02 July 2019

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Bibliography

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S. Kannanagara and M. Faulkner, "Analysis of an Adaptive Wideband Duplexer With Double-Loop Cancellation," IEEE Transactions on Vehicular Technology, Vol. 56, No. 4, pp.1971-1982, July 2007.
E. Hegazi and A.A. Abidi, "A 17 mW transmitter and frequency synthesizer for 900-MHz GSM fully integrated in 0.35-um CMOS," IEEE Journal ojSolid-State Circuits, vol. 38, no. 5, May 2003.
R. Eslapmanah and M. Faulkner, "Pilot Signal for Adaptive Duplexers," in Proceedings of the International Conference on Telecommunication Technology and Applications, Vo1.5, Singapore, 2011.
R. Eslampanah, L. Linton, S. Ahmed, R. Amirkhanzadeh, M. Pourakbar, I. Redoute, M. Faulkner, "Active Duplexing for Software Defined Radio" in Froc. IEEE Int. Symp. Circuits Syst., June 2014.