Naslov
Impact of Bipolar Transistor Parameters on the Characteristics of the Double-Balanced Mixer

Autori
Žilak, Josip ; Koričić, Marko ; Suligoj, Tomislav

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
MIPRO 2012 - 35th International Convention on Information and Communication Technology, Electronics and Microelectronics / Biljanović, Petar - Rijeka : Hrvatska udruga za informacijsku i komunikacijsku tehnologiju, elektroniku i mikroelektroniku - MIPRO, 2012, 97-102

ISBN
978-953-233-069-4

Skup
35th International Convention MIPRO 2012

Mjesto i datum
Opatija, Hrvatska, 21.05.2012. - 25.05.2012

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Horizontal Current Bipolar Transistor (HCBT); double-balanced mixer; Gilbert cell; IIP3; conversion gain; bipolar transistor; parameter influence

Sažetak
Impact of integrated bipolar transistor parameters on the double-balanced Gilbert mixer performance is analyzed. The used Gummel-Poon transistor model is based on Horizontal Current Bipolar Transistor (HCBT) integrated technology. Intermodulation distortion and conversion gain are analyzed by harmonic balance simulations. Due to the flexibility of HCBT technology, transistor parameters can be adjusted and their impact on circuit characteristics is examined. Analysis starts at lower level, where distortion of differential amplifier is studied and then it is expanded to the whole mixer where the influence of the each circuit part on distortion is examined. The achieved values of input third-order intercept point (IIP3) of 18 dBm and conversion gain of -3.3 dB for mixer with default transistor parameters are comparable with the commercial mixers. Parameter optimization gives a 4-5 dBm increase of IIP3 with small conversion gain decrease of -0.5 dB. The linearity increase depends on the mixer operating frequency.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

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