Wave transmission lines and networks – Plural channel systems – Having branched circuits
Patent
1993-03-09
1995-05-16
Gensler, Paul
Wave transmission lines and networks
Plural channel systems
Having branched circuits
333 21R, H01P 116, H01P 518
Patent
active
054164524
ABSTRACT:
A mode coupler for vertically polarized modes comprises a first waveguide (32) having a relatively small rectangular cross-section and a second waveguide (22) having a relatively large rectangular cross-section. The first small cross-section waveguide has a wall (300) formed in common with a portion (400) of a wall (200) of the second large cross-section waveguide. The common wall portion contains a series of circular apertures (202) extending in a longitudinal direction of both waveguides. The centers of the apertures are displaced a first distance (.tau..sub.1) from a center line of a wall of the first waveguide and a second distance (.tau..sub.2) from a center line of the wall of the second waveguide. In this case, a fundamental TE.sub.01S mode of the first waveguide is in phase synchronism and couples equally to the two degenerate TE.sub.11L and TM.sub.11L higher order vertically polarized modes of the second waveguide.
REFERENCES:
patent: 2883628 (1959-04-01), Heinard
patent: 2948864 (1960-08-01), Miller
patent: 3351874 (1967-11-01), Engler et al.
patent: 3518576 (1970-06-01), Algeo
patent: 4994819 (1991-02-01), Noerpel
patent: 5196812 (1993-03-01), Drost et al.
F. Sporleder, Erweiterte Theorie der Lochkopplung, Dr.-Ing.-Thesis, Technische, Universitat Braunschweig, Germany, 1976.
R. Levy, Improved Single and Multi-Aperture Waveguide Coupling Theory, Including Explanation of Mutual Interactions, Apr. 1980, IEEE Transactions on MTT, vol. MTT-28, No. 4, pp. 331-338.
H. A. Bethe, Theory of Diffraction by Small Holes, Oct. 1944, The Physical Review, vol. 66, Nos. 7 and 8, pp. 163-182.
N. McDonald, Polynomial Approximations for the Electric Polarizabilities of Some Small Apertures, Nov. 1985, IEEE Transactions on MTT, vol. 33, No. 11, pp. 1146-1149.
N. McDonald, Electric and Magnetic Coupling Through Small Aperture in Shield Walls of Any Thickness, Oct. 1972, IEEE Transactions MTT, vol. 20, pp. 689-695.
Noerpel Anthony R.
Sule-Koiki Adedokun W.
Bell Communications Research Inc.
Falk James W.
Gensler Paul
Suchyta Leonard Charles
LandOfFree
Mode diversity coupler for vertical polarization does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Mode diversity coupler for vertical polarization, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mode diversity coupler for vertical polarization will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-640580