Research and Design of a Low Phase-Noise Dielectric Resonator Oscillator for X-Band Radar Applications
9 lượt xemDOI:
https://doi.org/10.54939/1859-1043.j.mst.109.2026.47-54Từ khóa:
Dao động ngoại sai; Ra đa băng X; Hệ số tạp pha; Cộng hưởng điện môi.Tóm tắt
This paper presents the research, design, and implementation of a low phase-noise dielectric resonator oscillator (DRO) operating at 9.4 GHz for X-band radar applications. A high-quality-factor dielectric resonator operating in the mode was employed to enhance frequency stability and suppress phase noise. The oscillator was realized using a microstrip coupling structure, with a GaAs FET transistor serving as the active element in the feedback network. Comprehensive electromagnetic and circuit-level simulations were conducted in CST and ADS to optimize the resonator coupling and feedback configuration, ensuring stable oscillation and effectively mitigating spurious modes. Compared with conventional oscillator designs, the proposed DRO demonstrates superior frequency stability and reduced phase noise, while maintaining a compact form factor. These characteristics render the proposed design highly suitable for modern X-band radar front-ends as well as other advanced microwave communication systems requiring low-noise and high-stability local oscillators.
Tài liệu tham khảo
[1]. A.M.A. Pirkani and Christopher I. Duff, “High efficiency class E MMIC Oscillator for X-band medical applications – Part A”, Conference ARMMS RF & Microwave Society, (2019).
[2]. Yeongmin Jang, Wonseok Choe, Minchul Kim, and Jinho Jeong, “X-band Harmonic-Tuned high power and efficiency GaN HEMT Oscillator IC”, IEEE Access, (2017).
[3]. V.V. Kaper, V. Tilak, Hyungtak Kim, A.V. Vertiatchkh, R.M. Thompson, and T.R. Prunty, “High power monolithic AIGaN/ GaN HEMT oscillator”, IEEE Journal of Solid state circuits, (2003). DOI: https://doi.org/10.1109/JSSC.2003.815934
[4]. Zahra Soltani, Shahrooz Asadi, and Esfandiar Mehrsahi, “Single transistor low phase noise active dielectric resonator oscillator”, International Journal of Microwave and Wireless Technologies, (2019). DOI: https://doi.org/10.1017/S1759078719000837
[5]. Moon Que Lee, Keun Kwan Ryu, and In Bok Yom, “Phase noise reduction of microwave HEMT oscillators using a dielectric resonator coupled a high impedance inverter”, ETRI Journal, vol. 23, no. 4, (2001). DOI: https://doi.org/10.4218/etrij.01.0201.0401
[6]. N.M. Mahyuddin, M.F. Ain, S.I.S. Hassan, and Mandeep Singh, “Modeling of a 10 GHz dielectric resonator oscillator in ADS”, International RF and Microwave conference proceedings, (2006). DOI: https://doi.org/10.1109/RFM.2006.331048
[7]. H.N. Varcheh, Pejman Rezaei, “Low phase noise X-band dielectric resonator oscillator”, Journal of Modeling & Simulation in Electrical & Electronics Engineering, (2022).
[8]. S.S. Olokede, S.B.B.M. Zaki, N.M. Mahyuddin and Z.A. Ahmad, “Design of a negative conductance dielectric resonator oscillator for X-band applications”, Radioelectronics and communications systems, (2017). DOI: https://doi.org/10.3103/S0735272717090059
[9]. Yun Su, Huilin Zhao, Xifeng Liu, and Huang Lihao, “Design of the dielectric resonator oscillator with buffer amplifier”, Advanced materials research vols, (2012).
[10]. Yana Taryana, Yaya Sulaeman, Teguh Praludi, Yuyu Wahyu, and A.B. Santiko, “Design of 9.4 GHz dielectric oscillator with an additional single stage amplifier”, International seminar on Intelligent technology and its applications, (2018). DOI: https://doi.org/10.1109/ISITIA.2018.8711128
[11]. M.S. Yousaf and Muhammad Ahmad, “A free running dielectric resonator oscillator at 9.6 GHz”, International Bhurban conference on applied sciences & technology, (2013). DOI: https://doi.org/10.1109/IBCAST.2013.6512177
[12]. Gonzalez Guillermo, “Foundations of oscillator circuit design”, Artech, (2006).
