Vol. 79

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2017-11-06

A Miniaturized Self-Matched Negative Group Delay Microwave Circuit

By Te Shao, Zhongbao Wang, Shao-Jun Fang, Hongmei Liu, and Shiqiang Fu
Progress In Electromagnetics Research C, Vol. 79, 149-157, 2017
doi:10.2528/PIERC17083001

Abstract

A miniaturized self-matched negative group delay (NGD) microwave circuit without the need for external matching networks is proposed. The NGD circuit is based on a modified parallel-type RLC resonator, in which lumped elements (capacitors and inductors) are implemented by microstrip gaps and high-impedance and short-circuited microstrip lines. To verify the design concept, an NGD circuit with the size of 0.21λg×0.29λg is designed and fabricated. From the measurement results, the NGD time of -5.9 ns at the center frequency of 1.532 GHz is obtained with insertion loss of less than 12.5 dB, return losses of more than 25 dB and the NGD bandwidth of 45 MHz.

Citation


Te Shao, Zhongbao Wang, Shao-Jun Fang, Hongmei Liu, and Shiqiang Fu, "A Miniaturized Self-Matched Negative Group Delay Microwave Circuit," Progress In Electromagnetics Research C, Vol. 79, 149-157, 2017.
doi:10.2528/PIERC17083001
http://jpier.org/PIERC/pier.php?paper=17083001

References


    1. Hwang, M. E., S. O. Jung, and K. Roy, "Slope interconnect effort: Gate-interconnect interdependent delay modeling for early CMOS circuit simulation," IEEE Trans. Circuits Syst. I. Regul. Pap., Vol. 56, 1428-1441, 2009.
    doi:10.1109/TCSI.2008.2006217

    2. Myoung, S. S., B. S. Kwon, Y. H. Kim, and J. G. Yook, "Effect of group delay in RF BPF on impulse radio systems," IEICE Trans. Commun., Vol. 90, 3514-3522, 2007.
    doi:10.1093/ietcom/e90-b.12.3514

    3. Park, S., H. Choi, and Y. Jeong, "Microwave group delay time adjuster using parallel resonator," IEEE Microwave Wireless Compon. Lett., Vol. 17, 109-111, 2007.
    doi:10.1109/LMWC.2006.890331

    4. Ahn, K. P., R. Ishikawa, and K. Honjo, "Group delay equalized UWB InGaP/GaAs HBT MMIC amplifier using negative group delay circuits," IEEE Trans. Microwave Theory Tech., Vol. 57, 2139-2147, 2009.
    doi:10.1109/TMTT.2009.2027082

    5. Ravelo, B., A. Perennec, and M. Le Roy, "Experimental validation of the RC-interconnect effect equalization with negative group delay active circuit in planar hybrid technology," IEEE Workshop on Signal Propagation on Interconnects, 1-4, Strasbourg, France, 2009.

    6. Ravelo, B., "Neutralization of LC- and RC-effects with left-handed and NGD circuits," Adv. Electromagn., Vol. 2, 73-84, 2013.
    doi:10.7716/aem.v2i1.90

    7. Ravelo, B., "Recovery of microwave-digital signal integrity with NGD circuits," Photonics Opto. Electron., Vol. 2, 8-16, 2013.

    8. Noto, H., K. Yamauchi, M. Nakayama, and Y. Isota, "Negative group delay circuit for feed-forward amplifier," IEEE/MTT-S International Microwave Symposium, 1103-1106, Honolulu, HI, USA, 2007.

    9. Choi, H., Y. Jeong, C. D. Kim, and J. S. Kenney, "Efficiency enhancement of feedforward amplifiers by employing a negative group-delay circuit," IEEE Trans. Microwave Theory Tech., Vol. 58, 1116-1125, 2010.
    doi:10.1109/TMTT.2010.2045576

    10. Choi, H., Y. Jeong, C. D. Kim, and J. S. Kenney, "Bandwidth enhancement of an analog feed-back amplifier by employing a negative group delay circuit," Progress In Electromagnetics Research, Vol. 105, 253-272, 2010.
    doi:10.2528/PIER10041808

    11. Oh, S. S. and L. Shafai, "Compensated circuit with characteristics of lossless double negative materials and its application to array antennas," IET Microwaves Antennas Propag., Vol. 1, 29-38, 2007.
    doi:10.1049/iet-map:20050229

    12. Mirzaei, H. and G. V. Eleftheriades, "Realizing non-Foster reactive elements using negative-groupdelay networks," IEEE Trans. Microwave Theory Tech., Vol. 61, 4322-4332, 2013.
    doi:10.1109/TMTT.2013.2281967

    13. Lucyszyn, S., I. D. Robertson, and A. H. Aghvami, "Negative group delay synthesizer," Electron. Lett., Vol. 29, 798-800, 1993.
    doi:10.1049/el:19930533

    14. Chaudhary, G. and Y. Jeong, "Transmission-line negative group delay networks with improved signal attenuation," IEEE Antennas Wireless Propag. Lett., Vol. 13, 1039-1042, 2014.
    doi:10.1109/LAWP.2014.2327098

    15. Chaudhary, G. and Y. Jeong, "Low signal-attenuation negative group-delay network topologies using coupled lines," IEEE Trans. Microwave Theory Tech., Vol. 62, 2316-2324, 2014.
    doi:10.1109/TMTT.2014.2345352

    16. Chaudhary, G., Y. Jeong, and J. Lim, "Microstrip line negative group delay filters for microwave circuits," IEEE Trans. Microwave Theory Tech., Vol. 62, 234-243, 2014.
    doi:10.1109/TMTT.2013.2295555

    17. Ravelo, B., "Theory of coupled line coupler-based negative group delay microwave circuit," IEEE Trans. Microwave Theory Tech., Vol. 64, 3604-3611, 2016.
    doi:10.1109/TMTT.2016.2604316

    18. Ravelo, B., "Innovative theory on multiband NGD topology based on feedback-loop power combiner," IEEE Trans. Circuits Syst. II. Express Briefs, Vol. 63, 738-742, 2016.
    doi:10.1109/TCSII.2016.2531101

    19. Abunjaileh, A. I. and I. C. Hunter, "A matched bridged tee network with positive phase derivative," IEEE/MTT-S International Microwave Symposium, 1-4, Baltimore, MD, USA, 2011.

    20. Chaudhary, G. and Y. Jeong, "Transmission-type negative group delay networks using coupled line doublet structure," IET Microwaves Antennas Propag., Vol. 9, 748-754, 2015.

    21. Chaudhary, G. and Y. Jeong, "A finite unloaded quality-factor resonators based negative group delay circuit and its application to design power divider," Microwave Opt. Technol. Lett., Vol. 58, 2918-2921, 2016.
    doi:10.1002/mop.30184

    22. Chaudhary, G. and Y. Jeong, "Negative group delay phenomenon analysis using finite unloaded quality factor resonators," Progress In Electromagnetics Research, Vol. 156, 55-62, 2016.
    doi:10.2528/PIER16041111

    23. Wu, C. T. M. and T. Itoh, "Maximally flat negative group-delay circuit: A microwave transversal filter approach," IEEE Trans. Microwave Theory Tech., Vol. 62, 1330-1342, 2014.
    doi:10.1109/TMTT.2014.2320220

    24. Wu, C. T. M., S. Gharavi, B. Daneshrad, and T. Itoh, "A dual-purpose reconfigurable negative group delay circuit based on distributed amplifiers," IEEE Microwave Wireless Compon. Lett., Vol. 23, 593-595, 2013.
    doi:10.1109/LMWC.2013.2279104

    25. Pozar, D. M., "Microwave Engineering," John Wiley & Sons, New York, 2012.