A.B. Nikitin – Ph.D.(Eng.), Associate Professor, Higher School of Applied Physics and Space Technologies,  Peter The Great St. Petersburg Polytechnic University

E-mail: nikitin@mail.spbstu.ru

E.I. Khabitueva – Post-graduate Student, Higher School of Applied Physics and Space Technologies,  Peter The Great St. Petersburg Polytechnic University

E-mail: basilliounderground@mail.ru

This article describes the study and design of an ultra-wideband microwave voltage-controlled oscillator (VCO). This device provides an octave frequency tuning from 6 to 12 GHz. The basic structure of VCO was chosen. Also, the main requirements for varactor diodes was identified. A SiGe heterojunction bipolar transistor and a gallium arsenide hyperabrupt flip-chip varactor diodes were used in the oscillator's circuit implementation. Corresponding to the tuning voltage of 1 V to 13 V, the oscillation frequency varied in the octave bandwidth. As result, a hybrid microstrip circuit of ultra-wideband VCO has been designed. The developed VCO’s main parameters are not inferior to those similar products of the leading manufacturers of microwave devices.

1. Khanna A.P.S. State of the Art in Microwave VCOs // Microwave Journal. 2015. V. 58. № 5. P. 23−40.
2. Chenakin A. Frequency Synthesis: Current Status and Future Projections // Microwave Journal. 2017. V. 60. № 4. P. 22−36.
3. Chenakin A. Select A VCO or YIG For A PLL Synthesizer // Microwaves and RF. 2016. V. 55. № 2. P. 2−6.
4. Pandit V.K., Ramamurthy C., Basu S., Ingale D.V. Design and development of PLL based X-band carrier generator for satellite applications // International Journal of Science, Engineering and Technology Research (IJSETR). March 2014. V. 3. № 3. P. 267−270.
5. Gorevoj A. Vy’bor generatorov dlya postroeniya maloshumyashhix SVCh-sintezatorov // Komponenty’ i texnologii. 2012. № 6. S. 87−92.
6. MAOC-409000. Broadband Voltage Controlled Oscillator 6−12 GHz, datasheet, rezhim dostupa: https://cdn.macom.com/datasheets/MAOC-409000_V3P.pdf (data obrashheniya: 07.08.2017g.).
7. HMC732LC4B. Wideband MMIC VCO with buffer amplifier 6−12 GHz URL = http://www.analog.com/media/en/technicaldocumentation/data-sheets/hmc732.pdf (data obrashheniya: 07.08.2017 g.).
8. Naik M.R., Vithalani C.H. Wideband local oscillator design for wideband transceivers // Proceedings of 2011 IEEE International RF and Microwave Conference (RFM 2011). Malaysia 2011. P. 33−36.
9. Gorevoj A. Generator diapazona 1−2 GGcz s povy’shennoj krutiznoj regulirovochnoj xarakteristiki // Doklady’ TUSUR. 2011. № 1(23). S. 44−49.
10. Stauffer G.H. Finding the Lumped Element Varactor Diode Model // High Frequency Electronics. 2003. V. 2. № 6. P. 22−28.
11. Sun W. Accurate EM Simulation of SMT Components in RF Designs // Proceedings of the 2017 IEEE Radio Frequency Integrated Circuits Symposium (RFIC). USA. 2017. P. 140−143.
12. Maly’shev V.M., Matveev Yu.A., Nikitin A.B., Xudyakov A.V. Vy’bor varaktora dlya shirokopolosnogo perestraivaemogo generatora SVCh // Materialy’ Mezhdunar. nauch.-texn. konf. «Aktual’ny’e problemy’ e’lektronnogo priborostroeniya (APE’P-2014)». 2014. T. 1. S. 34−41.
13. Nikitin A.B., Xabitueva E.I. Osobennosti ispol’zovaniya chip-rezistorov v gibridny’x sxemax SVCh // Materialy’ Mezhdunar. nauch.-texn. konf. «Aktual’ny’e problemy’ e’lektronnogo priborostroeniya (APE’P-2016)». 2016. T. 1. S. 83−87.
14. Grebennikov A.V. RF and Microwave. Transistor Oscillator Design. John Wiley & Sons, Ltd. 2007. 441 p.
15. Infineon Technologies AG. Products: Ultra-Low Noise Si-Ge Transistors: baza danny’x. URL = https://www.infineon.com/cms/en/product/ (data obrashheniya: 06.12.2017).
16. NXP Semiconductors. Products: NPN wideband silicon germanium RF transistors: baza danny’x. URL = https://www.nxp.com/products/rf/low-power-tx-rx-discrete-components:MC_71691 (data obrashheniya: 06.12.2017).
17. NPN Silicon Germanium RF Transistor NESG3031M14. Datasheet: baza danny’x. URL = http://www.cel.com/pdf/datasheets/nesg3031m14.pdf (data obrashheniya: 04.12.2017).
18. MA46 Series. Datasheet: baza danny’x. URL = https://cdn.macom.com/datasheets/MA46%20Series.pdf (data obrashheniya: 30.11.2017).