ETRI Journal

Electronics and Telecommunications Research Institute (한국전자통신연구원)
권호 표지
DOI QR코드

DOI QR Code

Design of Group Delay Time Controller Based on a Reflective Parallel Resonator

  • Chaudhary, Girdhari (Department of Electronics and Information Engineering, IT Convergence Research Center, Chonbuk National University) ;
  • Choi, Heung-Jae (Center for High Frequency Engineering, Cardiff University) ;
  • Jeong, Yong-Chae (Department of Electronics and Information Engineering, IT Convergence Research Center, Chonbuk National University) ;
  • Lim, Jong-Sik (Department of Electronics and Information Engineering, Soonchunhyang University) ;
  • Kim, Chul-Dong (Sewon Teletech Inc.)
  • Received : 2010.11.16
  • Accepted : 2011.12.05
  • Published : 2012.04.04
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, a group delay time controller (GDTC) is proposed based on a reflection topology employing a parallel resonator as the reflection termination. The design equations of the proposed GDTC have been derived and validated by simulation and experimental results. The group delay time can be varied by varying the capacitance and inductance at an operating frequency. To show the validity of the proposed circuit, an experiment was performed for a wideband code division multiple access downlink band operating at 2.11 GHz to 2.17 GHz. According to the experiment, a group delay time variation of $3{\pm}0.17$ ns over bandwidth of 60 MHz with excellent flatness is obtained.

Keywords

References

  1. S.C. Cripps, Advanced Techniques in RF Power Amplifiers Design, Norwood, MA: Artech House, 2006.
  2. P.B. Kenington, High Linearity RF Amplifier Design, Norwood, MA: Artech House, 2000.
  3. R.N. Braithwaite, "Positive Feedback Pilot System for Second Loop Control in a Feedforward Power Amplifier," IEEE Trans. Circuits Syst., vol. 55, no. 10, Nov. 2008, pp. 3293-3305. https://doi.org/10.1109/TCSI.2008.923272
  4. Y. Jeong et al., "A Feed-Forward Amplifier Using an Equal Group Delay Signal Cancellation Technique," Microw. J., vol. 50, no. 50, Apr. 2007, pp. 126-134.
  5. S. Lucyszyn and I.D. Roberton, "Analog Reflection Topology Building Blocks for Adaptive Microwave Signal Processing Applications," IEEE Trans. Microw. Theory Tech., vol. 43, no. 3, Mar. 1995, pp. 601-611. https://doi.org/10.1109/22.372106
  6. I. Bhal and P. Bhartia, Microwave Solid Circuit Design, New York: Wiley, Apr. 2003.
  7. S. Park et al., "Group Delay Adjustor Using Resonance Circuit with Varactor Diode," IEEE Conf. Proc. Asian Pacific Microw., Dec. 2005, pp. 2176-2179.
  8. S. Park, H. Choi, and Y. Jeong, "Microwave Group Delay Time Adjustor Using Parallel Resonator," IEEE Microw. Wireless Comp. Lett., vol. 17, no. 2, Feb. 2007, pp. 109-111. https://doi.org/10.1109/LMWC.2006.890331
  9. H. Choi and Y. Jeong, "Design of a Microwave Group Delay Time Adjustor and Its Application to a Feedforward Power Amplifier," Microw. J., no. 51, no. 2, Feb. 2008, pp. 88-100.
  10. J.D. Fredrick, Y. Wang, and T. Itoh, "A New Circuit Topology for Continuous Group Delay Synthesis," IEEE Microw. Wireless Comp. Lett, vol. 12, no. 3, Mar. 2002, pp. 85-87. https://doi.org/10.1109/7260.989859
  11. W. Tang and H. Kim, "Compact, Tunable Large Group Delay Line," IEEE 10th Ann. Wireless Microw. Tech. Conf., Apr. 2009, pp. 1-3.
  12. C. Kim et al., "A K-Band CMOS Voltage Controlled Delay Line Based on an Artificial Left-Handed Transmission Line," IEEE Microw. Wireless Comp. Lett., vol. 18, no. 11, Nov. 2008, pp. 731-733. https://doi.org/10.1109/LMWC.2008.2005224
  13. P.C. Ko et al., "A 87 Pico-Second CMOS Variable Delay Line Incorporating the Parallel Resonator Loads in K-Band," IEEE MTT-S IMS Digest, June 2011, pp. 1-4.
  14. D. Kim et al., "A Wide-Band Reflection-Type Phase Shifter at S-Band Using BST Coated Substrate," IEEE Trans. Microw. Theory Tech., vol. 50, no. 12, Dec. 2002, pp. 2903-2909. https://doi.org/10.1109/TMTT.2002.805293
  15. S. Nam et al., "Wideband Reflection Type MMIC Attenuator with Constant Phase," Electron. Lett., vol. 34, no. 1, Jan. 1998, pp. 91-93. https://doi.org/10.1049/el:19980071
  16. K. Miyaguchi et al., "An Ultra-Broad-Band Reflection-Type Phase-Shifter MMIC with Series and Parallel LC Circuits," IEEE Trans. Microw. Theory Tech., vol. 49, no. 12, Dec. 2001, pp. 2446-2452. https://doi.org/10.1109/22.971634
  17. H.-R. Ahn, Asysmmetric Passive Components in Microwave Integrated Circuits, Wiley, Sept. 2006.

Cited by

  1. Time Mismatch Effect in Linearity of Hybrid Envelope Tracking Power Amplifier vol.25, pp.8, 2012, https://doi.org/10.1109/lmwc.2015.2440661
  2. Synthesis of Reflection-Type Coupled Line All-Pass Circuit With Arbitrary Prescribed Wideband Flat Group Delay vol.27, pp.10, 2017, https://doi.org/10.1109/lmwc.2017.2747149
  3. Reflection-Type Topologies With Arbitrary Wideband Flat Group Delays Using Coupled Lines vol.6, pp.None, 2012, https://doi.org/10.1109/access.2017.2779125