Communications: radio wave antennas – Antennas – Wave guide type
Patent
1979-08-22
1981-01-20
Moore, David K.
Communications: radio wave antennas
Antennas
Wave guide type
333242, H01G 1302
Patent
active
042465842
ABSTRACT:
The present invention relates to a hybrid mode waveguide or feedhorn antenna for transforming the TE.sub.11 mode into the HE.sub.11 mode. The waveguide or antenna comprises a first waveguide section of uniform cross-section at the TE.sub.11 mode entrance port which in the antenna arrangement changes to a second section which flares outward toward the antenna mouth, and a spiro-helical projection bonded with a dielectric layer to the inner surface of the waveguide or antenna. The spiro-helical projection comprises a closely spaced helically wound wire structure formed of dielectrically coated wires which in the first section decrease in gauge size in small adjacent portions thereof as the helix progresses away from the TE.sub.11 mode entrance port and in the remainder of the helical projection, the same or decreasing gauge wire in adjacent portions can be used.
REFERENCES:
patent: 2950454 (1960-08-01), Unger
patent: 3121206 (1964-02-01), Mandel
patent: 3289121 (1966-11-01), Comte
patent: 3601720 (1971-08-01), Nakahara et al.
patent: 3732571 (1973-05-01), Neale
patent: 3754273 (1973-08-01), Takeichi et al.
patent: 3771076 (1973-11-01), Kidner et al.
patent: 3924237 (1975-12-01), Fletcher et al.
patent: 3949406 (1976-04-01), Yuard
patent: 3964070 (1976-06-01), Drabuwitch
patent: 4021814 (1977-05-01), Kerr et al.
patent: 4071834 (1978-01-01), Comte
patent: 4097869 (1978-06-01), Robinson
patent: 4106026 (1978-08-01), Bui-Hai et al.
Takeichi et al., "The Ring Loaded Corrugated Waveguide", IEEE Trans. on MTT, vol. MTT-19, No. 12, 12/71.
Dragone, "Reflection Transmission and Mode Conversion in a Corrugated Feed", BSTJ, vol. 56, No. 6, Jul.-Aug. 1977, pp. 835-837.
Dragone, "Characteristics of a Broadband Microwave Corrugated Feed, a Comparison Between Theory and Experiment", BSTJ, vol. 56, No. 6, Jul.-Aug. 1977.
Boyd, "Waveguide Design and Fabrication", BSTJ, vol. 56, No. 10, pp. 1873-1897.
Bell Telephone Laboratories Incorporated
Moore David K.
Pfeifle Erwin W.
LandOfFree
Hybrid mode waveguide or feedhorn antenna does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hybrid mode waveguide or feedhorn antenna, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hybrid mode waveguide or feedhorn antenna will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1769679