GB1080546A - Improvements in or relating to antennae - Google Patents

Improvements in or relating to antennae

Info

Publication number
GB1080546A
GB1080546A GB49148/64A GB4914864A GB1080546A GB 1080546 A GB1080546 A GB 1080546A GB 49148/64 A GB49148/64 A GB 49148/64A GB 4914864 A GB4914864 A GB 4914864A GB 1080546 A GB1080546 A GB 1080546A
Authority
GB
United Kingdom
Prior art keywords
frequency
waveguide
aperture
energy
frequencies
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB49148/64A
Inventor
Richard Herbert Turrin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB1080546A publication Critical patent/GB1080546A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
    • H01Q19/13—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave the primary radiating source being a single radiating element, e.g. a dipole, a slot, a waveguide termination
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/16—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/20—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/24—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave constituted by a dielectric or ferromagnetic rod or pipe
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
    • H01Q5/45—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements using two or more feeds in association with a common reflecting, diffracting or refracting device

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Waveguide Aerials (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

1,080,546. Aerials. WESTERN ELECTRIC CO. Inc. Dec. 3, 1964 [Dec. 5, 1963], No. 49148/64. Heading H4A. [Also in Division H1] The effective area of a radiating aperture provided in a waveguide operating at two frequencies is decreased at the higher frequency by means which causes wave energy at that frequency only to be concentrated in the centre region of the aperture, whereby the radiation patterns for both frequencies are made substantially the same. As described, a circular air-filled waveguide 11 is fed from a source 13 at one end and radiates energy at the other end, in which end a cylindrical rod 10 made, for example, of material with dielectric constant two or more is held coaxially by an annular plug made of material with dielectric constant nearly one. The rod 10 is tapered at its end inside the waveguide and is squared-off at the other end, which protrudes by a small amount from the aperture. At both the lower and the higher frequencies transmission of energy to the radiating aperture takes place in the TE 11 mode, Fig. 2A (not shown), but at the higher frequency it also takes place in the TM 11 mode, Fig. 2B (not shown), causing a concentration of energy of that frequency at the centre of the aperture, Fig. 2c (not shown). It is stated that the phase and magnitude of the TM 11 energy may be controlled by adjustment of the dimensions of the rod 10 and its position within the waveguide 11, and that in consequence substantially equal radiation patterns at both frequencies may be obtained (Fig. 4, not shown). The dimensions of the waveguide are chosen so that the cutoff frequency for transmission in the TM 11 mode is greater than the lower frequency of operation. A paraboloidal reflector 70 or a lens may be used in conjunction with the radiating aperture. One frequency may be used for reception and the other for transmission, as in a communications system link, and the two may be polarized linearly and orthogonally to reduce interaction.
GB49148/64A 1963-12-05 1964-12-03 Improvements in or relating to antennae Expired GB1080546A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US328401A US3268902A (en) 1963-12-05 1963-12-05 Dual frequency microwave aperturetype antenna providing similar radiation pattern on both frequencies

Publications (1)

Publication Number Publication Date
GB1080546A true GB1080546A (en) 1967-08-23

Family

ID=23280820

Family Applications (1)

Application Number Title Priority Date Filing Date
GB49148/64A Expired GB1080546A (en) 1963-12-05 1964-12-03 Improvements in or relating to antennae

Country Status (6)

Country Link
US (1) US3268902A (en)
BE (1) BE656440A (en)
DE (1) DE1253772B (en)
GB (1) GB1080546A (en)
NL (1) NL6412590A (en)
SE (1) SE312157B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2021758A1 (en) * 1968-10-28 1970-07-24 Hughes Aircraft Co
EP0059927A1 (en) * 1981-03-07 1982-09-15 ANT Nachrichtentechnik GmbH Microwave receiving arrangement

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3324423A (en) * 1964-12-29 1967-06-06 James E Webb Dual waveguide mode source having control means for adjusting the relative amplitudesof two modes
US3858214A (en) * 1966-05-18 1974-12-31 Us Army Antenna system
US3500419A (en) * 1966-09-09 1970-03-10 Technical Appliance Corp Dual frequency,dual polarized cassegrain antenna
US3482248A (en) * 1967-07-31 1969-12-02 Us Army Multifrequency common aperture manifold antenna
US4338609A (en) * 1980-12-15 1982-07-06 Rca Corporation Short horn radiator assembly
US4845508A (en) * 1986-05-01 1989-07-04 The United States Of America As Represented By The Secretary Of The Navy Electric wave device and method for efficient excitation of a dielectric rod
US5109232A (en) * 1990-02-20 1992-04-28 Andrew Corporation Dual frequency antenna feed with apertured channel
US5793335A (en) * 1996-08-14 1998-08-11 L-3 Communications Corporation Plural band feed system
US5793334A (en) * 1996-08-14 1998-08-11 L-3 Communications Corporation Shrouded horn feed assembly
US5907309A (en) * 1996-08-14 1999-05-25 L3 Communications Corporation Dielectrically loaded wide band feed
US5818396A (en) * 1996-08-14 1998-10-06 L-3 Communications Corporation Launcher for plural band feed system
KR101874694B1 (en) * 2016-03-28 2018-07-04 한국과학기술원 Waveguide for transmission of electomagnetic signal
US11165129B2 (en) * 2016-12-30 2021-11-02 Intel Corporation Dispersion reduced dielectric waveguide comprising dielectric materials having respective dispersion responses
EP3561949B1 (en) * 2018-04-27 2023-08-23 Nokia Shanghai Bell Co., Ltd. Multiband antenna feed
US11329359B2 (en) 2018-05-18 2022-05-10 Intel Corporation Dielectric waveguide including a dielectric material with cavities therein surrounded by a conductive coating forming a wall for the cavities

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2625605A (en) * 1948-04-14 1953-01-13 Rca Corp Resonator
US2659817A (en) * 1948-12-31 1953-11-17 Bell Telephone Labor Inc Translation of electromagnetic waves
US2801413A (en) * 1949-03-30 1957-07-30 Bell Telephone Labor Inc Directive dielectric antennas
US2762982A (en) * 1951-05-17 1956-09-11 Bell Telephone Labor Inc Mode conversion in wave guides
US3055004A (en) * 1958-12-18 1962-09-18 Bell Telephone Labor Inc Horn radiator for spherical reflector
GB970933A (en) * 1960-10-11 1964-09-23 Nat Res Dev Improvements in waveguide junctions
DE1140246B (en) * 1961-09-28 1962-11-29 Rohde & Schwarz Coupling arrangement for a surface waveguide

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2021758A1 (en) * 1968-10-28 1970-07-24 Hughes Aircraft Co
EP0059927A1 (en) * 1981-03-07 1982-09-15 ANT Nachrichtentechnik GmbH Microwave receiving arrangement
US4498061A (en) * 1981-03-07 1985-02-05 Licentia Patent-Verwaltungs-Gmbh Microwave receiving device

Also Published As

Publication number Publication date
SE312157B (en) 1969-07-07
NL6412590A (en) 1965-06-07
BE656440A (en) 1965-03-16
DE1253772B (en) 1967-11-09
US3268902A (en) 1966-08-23

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