GB644376A - Directive antenna systems - Google Patents

Directive antenna systems

Info

Publication number
GB644376A
GB644376A GB10376/47A GB1037647A GB644376A GB 644376 A GB644376 A GB 644376A GB 10376/47 A GB10376/47 A GB 10376/47A GB 1037647 A GB1037647 A GB 1037647A GB 644376 A GB644376 A GB 644376A
Authority
GB
United Kingdom
Prior art keywords
guide
horn
waves
length
wave
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
GB10376/47A
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 GB644376A publication Critical patent/GB644376A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01Q13/02—Waveguide horns
    • 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
    • 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
    • H01Q19/134—Rear-feeds; Splash plate feeds

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Waveguide Aerials (AREA)

Abstract

644,376. Aerials. WESTERN ELECTRIC CO., Inc. April 18, 1947, No. 10376. Convention date, April 26, 1946. [Class 40 (vii)] A wave-guide horn for use in receiving or transmitting electromagnetic waves comprises means for establishing in the horn waves of two different modes having different phase-velocities in the horn, the length of the horn being so chosen that, in travelling the length of the horn, the two waves are brought into a desired phase relationship. Fig. 1 illustrates a transmitter 1 coupled to a wave-guide radiator comprising wave-guide elements 2 and 9 having different dimensions in the H-plane. The guide 2 is so proportioned that it can support only TE10 waves while guide 9 is proportioned to carry both TE10 and TE30 waves. The field distribution in guide 2 is as shown in Fig. 2 and the distribution at the junction of the portions 2 and 9 is as shown by line 18, Fig. 3. Lines 16 and 17 show the TE10 and TE30 components in the guide 9 corresponding thereto. The length of the guide 9 is such that a relative phase-change of 180 degrees occurs between the two component waves in passing down its length. In this way a field distribution is obtained across the mouth of the guide which is substantially flat, as shown in Fig. 4, and has uniform phase. The walls of the guide 9 may be flared in both the E-plane and H-plane, Fig. 6 (not shown). In Fig. 7, in a system as described in Specification 595,893, a horn radiator is used with a paraboloidal reflector having an elliptical periphery. The horn radiator is illustrated in Fig. 8 ; the guide 26 can support TE10 waves only while horn 22 can also support TE30 waves. A dielectric window 27 is mounted across the horn near its mouth and a tuning plug 30 is provided. Fig. 11 illustrates an embodiment also similar to one described in Specification 595,893 ; in this arrangement the length between the end of the guide 26 and the radiating apertures is chosen so as to obtain the desired field distribution across these apertures.
GB10376/47A 1946-04-26 1947-04-18 Directive antenna systems Expired GB644376A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US665027A US2548655A (en) 1946-04-26 1946-04-26 Directive dielectric guide antenna

Publications (1)

Publication Number Publication Date
GB644376A true GB644376A (en) 1950-10-11

Family

ID=24668412

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10376/47A Expired GB644376A (en) 1946-04-26 1947-04-18 Directive antenna systems

Country Status (5)

Country Link
US (1) US2548655A (en)
BE (1) BE472577A (en)
DE (1) DE826317C (en)
FR (1) FR943949A (en)
GB (1) GB644376A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL145326B (en) * 1948-03-25 Skf Svenska Kullagerfab Ab ARMY COMBINATION.
US2692984A (en) * 1950-08-30 1954-10-26 Sperry Corp Bridge obstruction marker for radar navigation
US2778016A (en) * 1953-01-23 1957-01-15 Gabriel Co Wave guide antenna
US2809371A (en) * 1954-09-30 1957-10-08 Rca Corp Liquid trap for vertically mounted horn antenna
US10763916B2 (en) * 2017-10-19 2020-09-01 At&T Intellectual Property I, L.P. Dual mode antenna systems and methods for use therewith

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2206923A (en) * 1934-09-12 1940-07-09 American Telephone & Telegraph Short wave radio system
US2129669A (en) * 1937-03-30 1938-09-13 Bell Telephone Labor Inc Guided wave transmission
US2232179A (en) * 1938-02-05 1941-02-18 Bell Telephone Labor Inc Transmission of guided waves
US2283935A (en) * 1938-04-29 1942-05-26 Bell Telephone Labor Inc Transmission, radiation, and reception of electromagnetic waves
US2416698A (en) * 1938-04-29 1947-03-04 Bell Telephone Labor Inc Radiation and reception of microwaves
US2255042A (en) * 1939-01-03 1941-09-09 Research Corp Electromagnetic horn
NL73349C (en) * 1941-11-28
NL63520C (en) * 1941-12-10
US2415807A (en) * 1942-01-29 1947-02-18 Sperry Gyroscope Co Inc Directive electromagnetic radiator

Also Published As

Publication number Publication date
BE472577A (en)
FR943949A (en) 1949-03-22
US2548655A (en) 1951-04-10
DE826317C (en) 1951-12-27

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