A 5G mm-wave compact VCO in 0.25 µm pHEMT technology

Abdelhafid Es-saqy, Maryam Abata, Mahmoud Mehdi, Mohammed Fattah, Said Mazer, Moulhime El Bekkali, Catherine Algani


A 5G mm-wave monolithic microwave integrated circuit (MMIC) voltage-controlled oscillator (VCO) is presented in this paper. It is designed on GaAs substrate and with 0.25µm-pHEMT technology from UMS foundry and it is based on pHEMT varactors in order to achieve a very small chip size. A 0 dBm-output power over the entire tuning range from 27.67 GHz to 28.91 GHz, a phase noise of -96,274 dBc/Hz and -116,24 dBc/Hz at 1 and 10 MHz offset frequency from the carrier respectively are obtained on simulation. A power consumption of 111 mW is obtained for a chip size of 0.268 mm2. According to our knowledge, this circuit occupies the smallest surface area compared to pHEMTs oscillators published in the literature.


5G; compact VCO; mm-wave band; pHEMT transistor; pHEMT varactor;

DOI: http://doi.org/10.11591/ijece.v11i2.pp%25p
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ISSN 2088-8708, e-ISSN 2722-2578