Low radiation balanced microstrip bandpass filter

Wave transmission lines and networks – Coupling networks – Wave filters including long line elements

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333219, H01P 1203

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active

058252630

ABSTRACT:
A low-radiation balanced microstrip bandpass filter is provided. A series of microstrip segments are arranged on the surface of a substrate. The degree of coupling between adjacent pairs of segments is determined by the length of overlap between them. By always having pairs of segments, a very small far field radiation is achieved.

REFERENCES:
patent: 3605045 (1971-09-01), Ramsbotham, Jr.
patent: 3753167 (1973-08-01), Cohn
patent: 4701727 (1987-10-01), Wong
patent: 5017897 (1991-05-01), Ooi et al.
patent: 5027088 (1991-06-01), Shimizu et al.
patent: 5164690 (1992-11-01), Yeh et al.
patent: 5334961 (1994-08-01), Shirai et al.
patent: 5361050 (1994-11-01), Einbinder
patent: 5404119 (1995-04-01), Kim
patent: 5640134 (1997-06-01), Ralph
Simons et al., "Double-Shot Fin-Line Structure for Millimeter Wave Application", Proc. of the IEEE, vol. 67, No. 8, pp. 1159, 1160, Aug. 1979.
English Abstract for Fed. Rep. Germany Patent 1,229,659, Dec. 1966.
R.R. Romanofsky, et al., "An Experimental Investigation of Microstrip Properties on Soft Substrates from 2 to 40 GHz" 1985, pp. 675-678, IEEE MTT-S Digest.
Fang-Lih Lin, et al., "Coplanar Waveguide Bandpass Filter A Ribbon-Of-Brick Design" Jul. 1995, pp. 1589-1595, IEEE Transactions on Microwave Theory and Techniques vol. 43, No. 7.
John W. Bandler, et al., "Microstrip Filter Design Using Direct EM Field Simulation", Jul. 1994, pp. 1353-1359, IEEE Transactions on Microwave Theory and Techniques, vol. 42, No. 7.
P.B. Katehi, et al., "Microstrip Filter Design Including Dispersion Effects and Radiation Losses", 1986, pp. 687-690, IEEE MTT-S Digest.
K.C. Gupta, et al., Microstrip Lines I: Quasi-Static Analysis, Dispersion Models, and Measurements, 2nd Edition 1996, pp. 425-435, Microstrip Lines and Slotlines.
P.B. Katehi, "Radiatioj Losses in MM-Wave Open Microstrip Filters", 1987, pp. 137-152, Electromagnetics.
Morikazu Sagawa, et al., Miniaturized Hairpin Resonator Filters and Their Application to Receiver Front-End MIC's, Dec. 1989, pp. 1991-1997, IEEE Transactions on Microwave Theory and Techniques, vol. 37, No. 12.
Jesse Sheinwald, MMIC Compatible Bandpass Filter Design: A Survey of Applicable Techniques, Mar. 1994, pp. 26-41, Microwave Journal.
N. I. Dib et al., "Coplanar Waveguide Discontinuities for P-I-N Diode Switches and Filter Applications", MTT-S International Microwave Symposium Digest, vol. 1, May (1990), pp. 399-402.
I. O. Vardiambasis et al., "Hybrid Wave Propagation in Circularly Shielded Microslot Fines", IEEE Transactions on Microwave Theory and techniques, vol. 43, No. 8, Aug. 1995, pp. 1960-1966.
J. S. McLean et al., "Analysis of a New Configuration of Coplanar Stripline", IEEE Transactions on Microwave Theory and Techniques, vol. 40, No. 4, Apr. (1992), pp. 772-774.
S. G. Pintzos, "Full-Wave Spectral-Domain Analysis of Coplanar Strips", IEEE Transactions on Microwave Theory, vol. 39, No. 2, Feb. (1991), pp. 239-246.
Pertti K. Ikalainen, et al., Narrow-Band Microstrip Bandpass Filters with Low Radiation Losses for Millimeter-Wave Applications, Mar. 1988, pp. 514-521, IEEE Transactions on Microwave Theory and techniques, vol. 36, No. 3.
Seymour B. Cohn, Parallel-Coupled Transmission-Line-Resonator Filters, Apr. 1958, pp. 223-232, IRE Transactions on Microwave Theory and Techniques.
M. trant, et al., Wideband Bandpass Filters Employing Broadside-Coupled Microstrip Lines for MIC and MMIC Applications, Apr. 1994, pp. 210-225, Microwave Journal.

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