Using parallel resonators to create improved maximally flat quarter-wavelength transformer impedance-matching networks

IEEE Transactions on Microwave Theory and Techniques

Volumn 47, Issue 2, 1999, Pages 132-141

  Drozd, J Michael ^a   Joines, William T ^a  

^a Duke University   (United States)

Author keywords

Impedance matching; Maximally flat; Microwaves; Q, quarter wavelength transformer; Resonators

Indexed keywords

ELECTRIC TRANSFORMERS; IMPEDANCE MATCHING (ELECTRIC); MICROWAVE FILTERS; RESONATORS;

QUARTER WAVE TRANSFORMER IMPEDANCE MATCHING NETWORKS (QWT-IMN);

MICROWAVE INTEGRATED CIRCUITS;

EID: 0033079003     PISSN: 00189480     EISSN: None     Source Type: Journal    
DOI: 10.1109/22.744287     Document Type: Article

References (18)

1. J. M. Drozd and W. T. Joines, "Maximally flat quarter-wavelength-coupled transmission line filters using Q distribution," IEEE Trans. Microwave Theory Tech., vol. 45, pp. 2100-2113, Dec. 1997.
2. R. J. Wenzel, "Exact design of TEM microwave networks using quarter-wave lines," IEEE Trans. Microwave Theory Tech., vol. MTT-12, pp. 94-111, Jan. 1964.
3. M. C. Horton and R. J. Wenzel, "General theory and design of optimum quarter-wave TEM filters," IEEE Trans. Microwave Theory Tech., vol. MTT-13, pp. 316-327, May 1965.
4. G. C. Southworth, Principles and Application of Waveguide Transmission. New York: Van Nostrand, 1950, pp. 272-273.
5. R. E. Collin, "Theory and design of wide-band multisectional quarterwave transformers," Proc. IRE, vol. 43, pp. 179-185, Feb. 1955.
6. L. Young, "Stepped-impedance transformers and filter prototypes," IRE Trans. Microwave Theory Tech., vol. MTT-10, pp. 339-358, Sept. 1962.
7. W. T. Joines and J. R. Griffin, "On using the Q of transmission lines," IEEE Trans. Microwave Theory Tech., vol. MTT-16, pp. 258-260, Apr. 1968.
8. H. Jasik, Antenna Engineering Handbook. New York: McGraw-Hill, 1961, pp. 31-20, 31-42.
9. A. Podcameni and L. F. Conrado, "Broadbanding the quarter-wave transformer using two parallel stubs," Electron. Lett., vol. 17, no. 11, pp. 372-374, May 1981.
10. G. L. Matthaei, L. Young, and E. M. T. Jones, Microwave Filters, Impedance Matching Networks, and Coupling Structures. New York: McGraw-Hill, 1964.
11. P. Rizzi, Microwave Engineering Passive Circuits. Englewood Cliffs, NJ: Prentice-Hall, 1988, ch. 4.
12. J. M. Drozd and W. T. Joines, "Using the Q distribution method to design maximally flat quarter-wavelength-coupled filters," Microwave J., vol. 40, no. 11, pp. 88-104, Nov. 1997.
13. G. C. DiPiazza and P. Onno, "50 W/CW diode tuned UHF filter," in IEEE-MTT-S Int. Microwave Symp. Dig., 1986, pp. 297-300.
14. J. M. Drozd and W. T. Joines, "A capacitively loaded half-wavelength tapped-stub resonator," IEEE Trans. Microwave Theory Tech., vol. 45, pp. 1101-1104, July 1997.
15. W. W. Mumford, "Tables of stub admittances for maximally flat filters using shorted quarter-wave stubs," IEEE Trans. Microwave Theory Tech., vol. MTT-13, pp. 695-696, Sept. 1965.
16. H. J. Riblet, "General synthesis of quarter-wave impedance transformers," IRE Trans. Microwave Theory Tech., vol. MTT-5, pp. 36-43, Jan. 1957.
17. J. R. Griffin and W. T. Joines, "The general transfer matrix for networks with open-circuited or short-circuited stubs," IEEE Trans. Circuit Theory, vol. CT-16, pp. 373-376, Aug. 1969.
18. C. G. Montgomery, R. H. Dicke, and E. M. Purcell, Principles of Microwave Circuits. New York: McGraw-Hill, 1948, ch. 7, pp. 230-231.