TY - GEN
T1 - An IC based self-oscillating mixer for telecommunications
AU - Tofighi, Mohammad Reza
AU - Daryoush, Afshin S.
PY - 2004
Y1 - 2004
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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M3 - Conference contribution
AN - SCOPUS:14844336349
SN - 0780384512
SN - 9780780384514
T3 - Proceedings - 2004 IEEE Radio and Wireless Conference, RAWCON
SP - 331
EP - 334
BT - Proceedings - 2004 IEEE Radio and Wireless Conference, RAWCON
A2 - Heiter, G.
T2 - Proceedings - 2004 IEEE Radio and Wireless Conference, RAWCON
Y2 - 19 September 2004 through 22 September 2004
ER -