Browse > Article
http://dx.doi.org/10.6109/jkiice.2014.18.7.1652

77 GHz Waveguide VCO for Anti-collision Radar Applications  

Ryu, Keun-Kwan (Department of Electronics & Control Engineering, Hanbat National University)
Kim, Sung-Chan (Department of Electronics & Control Engineering, Hanbat National University)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.18, no.7, 2014 , pp. 1652-1656 More about this Journal
Abstract
In this work, we demonstrated a 77 GHz waveguide VCO with transition from WR-12 to WR-10 for anti-collision radar applications. The fabricated waveguide VCO consists of a GaAs-based Gunn diode, a varactor diode, a waveguide transition, and two bias posts for operating as a LPF and a resonator. The cavity is designed for fundamental mode at 38.5 GHz and operated at second hormonic of 77 GHz. The waveguide transition has a 1.86 dB of insertion loss and -30.22 dB of S11 at the center frequency of 77 GHz. The fabricated VCO achieves an oscillation bandwidth of 870 MHz. Output power is from 12.0 to 13.75 dBm and phase noise is -100.78 dBc/Hz at 1 MHz offset frequency from the carrier.
Keywords
waveguide; VCO; 77 GHz; Gunn diode; varactor diode;
Citations & Related Records
연도 인용수 순위
  • Reference
1 K. Kamozaki, K. Kurita, N. Hioe, W. Tanimoto, T. Ohta, H. Nakamura and T. Kondoh, H., "A 77GHz T/R MMIC chip Set for Automotive Radar syatems," in Proceeding of IEEE Gallium Arsenide Integrated Circuit (GaAs IC) Symposium, pp. 275-278, 1997.
2 J. Udomoto, T. Matsuzuka, S. Chaki, K. Kanaya, T. Katoh, Y. Notani, T. Hisaka, T. Oku, T. Ishikawa, M. Komaru and Y. Matsuda, "A 38/77 GHz MMIC Transmitter Chip Set for Automotive Applications," in Proceeding of IEEE MTT-S Dig., vol. 3, pp. 2229-2232, 2003.
3 H. Li, H.-M. Rein, T. Suttorp, "Design of W-band VCOs with high output power for potential application in 77 GHz automotive radar systems," in Proceeding of IEEE Gallium Arsenide Integrated Circuit (GaAs IC) Symposium, pp. 263- 266, Nov. 2003.
4 V. von Tils, "Trends and Challenges in Automotive Electronics," in Proceeding of IEEE International Symposium Power Semiconductor Devices and IC's, pp.1-3, Jun. 2006.
5 E. L. Holzman, R. S. Robbertson, Solide-State Microwave Power Oscillator Design, Artech House, INC., 1992.
6 H. J. Siweris, H. Tischer, T. Grave, W. Kellner, "A monolithic W-band HEMT VCO with feedback topology," in Proceeding of IEEE MTT-s Microwave Symposium Digest, vol. 1, pp. 17-20, 1999.
7 F. Lenk, M. Schott, J. Hilsenbeck, J. Wurfl, W. Heinrich, "Low phase-noise monolithic GaInP/GaAs-HBT VCO for 77 GHz," in Proceeding of IEEE MTT-s Microwave Symposium Digest, vol. 2, pp. 903-906, 2003.
8 N. Priestley, K. Newsome, I. Dale, P. Norton, "A Gunn diode based surface mount 77 GHz oscillator for automotive applications," in Proceeding of IEEE MTT-s Microwave Symposium Digest, vol. 3, pp. 1863-1866, 2002.