Title :
Input and output matched SiGe RF mixer with high dynamic range
Author :
Cam, Zehra Gulru ; Palamutcuogullari, O.
Author_Institution :
Yildiz Tech. Univ., Istanbul, Turkey
Abstract :
An active mixer operating at 2.15 GHz which is based on the Gilbert Mixer topology is designed by using the transistors which are realized by using 0.25um SiGe technology. The symetrical driving circuit at the input is realized by using the CB(common base) and CE(common emitter) transistors which operate interactively. The passive capacitive voltage-series feed-forward circuit is applied to CB circuit and an almost perfect broadband matching is obtained at the input. Mixer is simulated with AWR software environment. 5V DC supply voltage is used, OIP3 of 24.7 dBm and the Conversion Gain of 3 dB is obtained for the -2.5 dBm of LO power. The noise figure of the circuit is simulated as 11.75 dB.
Keywords :
Ge-Si alloys; UHF mixers; passive networks; AWR software environment; CB transistors; CE transistors; Gilbert mixer topology; SiGe; active mixer; almost perfect broadband matching; common base transistors; common emitter transistors; frequency 2.15 GHz; gain 3 dB; high dynamic range; input matched mixer; noise figure 11.75 dB; output matched RF mixer; passive capacitive voltage-series feedforward circuit; size 0.25 mum; symetrical driving circuit; voltage 5 V; Mixers; Noise; Noise figure; Radio frequency; Resistors; Switching circuits; Transistors;
Conference_Titel :
Electrical and Electronics Engineering (ELECO), 2013 8th International Conference on
Conference_Location :
Bursa
Print_ISBN :
978-605-01-0504-9
DOI :
10.1109/ELECO.2013.6713915
