Title :
Novel even harmonic mixer for 3G mobile receivers
Author :
Shamsinejad, S. ; Soleimani, M. ; Tayarani, M. ; Komjani, N.
Author_Institution :
Dept. of Electr. Eng., Iran Univ. of Sci. & Technol., Tehran
Abstract :
This paper reports a high IIP3 even harmonic mixer with a new circuit configuration. This mixer employs an antiparallel diode pair, open and short circuited stubs and a radial stub as filters to separate RF input signal, baseband output signal and LO power. This mixer is used for down converting 3G mobile downlink signal at 2140 MHz to baseband by using a local oscillator at 1070 MHz in direct conversion configuration. This mixer must comply with the requirements specified by 3G UMTS: 3rd order input intercept point=14.466 dBm ges 11 dBm, noise figure=9 dB and conversion loss=11 dB.
Keywords :
3G mobile communication; UHF mixers; radiofrequency oscillators; 3G mobile receivers; antiparallel diode pair; baseband output signal; direct conversion configuration; frequency 1070 MHz; frequency 2140 MHz; input intercept point; local oscillator; loss 11 dB; noise figure; noise figure 9 dB; novel even harmonic mixer; radial stub filters; short circuited stubs; 3G mobile communication; Baseband; Circuits; Diodes; Downlink; Local oscillators; Noise figure; Power harmonic filters; RF signals; Radio frequency;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2008. ICMMT 2008. International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-1879-4
Electronic_ISBN :
978-1-4244-1880-0
DOI :
10.1109/ICMMT.2008.4540533
