GB1269633A - Improvements relating to microwave antenna arrays - Google Patents

Improvements relating to microwave antenna arrays

Info

Publication number
GB1269633A
GB1269633A GB22140/68A GB2214068A GB1269633A GB 1269633 A GB1269633 A GB 1269633A GB 22140/68 A GB22140/68 A GB 22140/68A GB 2214068 A GB2214068 A GB 2214068A GB 1269633 A GB1269633 A GB 1269633A
Authority
GB
United Kingdom
Prior art keywords
aerial
elements
conductor
axis
array
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
GB22140/68A
Inventor
Michael Frank Cosslett
Robert Frost
Kenneth Owen Rossiter
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.)
EMI Ltd
Original Assignee
EMI Ltd
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 EMI Ltd filed Critical EMI Ltd
Priority to GB22140/68A priority Critical patent/GB1269633A/en
Priority to US822143A priority patent/US3596271A/en
Publication of GB1269633A publication Critical patent/GB1269633A/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
    • H01Q13/20—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/26—Surface waveguide constituted by a single conductor, e.g. strip conductor

Landscapes

  • Waveguide Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

1,269,633. Aerials. EMI Ltd. 5 May, 1969 [9 May, 1968], No. 22140/68. Heading H4A. An aerial comprises a conductor which undulates about an axis so as to form a series of elements disposed on alternate sides thereof. The elements, which are, for example, of arcuate or of sinusoidal shape, have amplitudes relative to the axis, and extensions along the axis, which respectively increase and decrease from each end of the aerial towards its centre. Each adjacent pair of elements conforms substantially to an adjacent pair of elements of a respective Dolph- Tchebycheff array of a length equal to the aerial ; each such array has a number of elements related to the axial extension of one of the respective pair of elements of the aerial; and each such Dolph-Tchebycheff array has substantially the same main lobe direction and substantially the same main lobe to side lobe ratio. As described, an aerial comprises a strip transmission line in which an undulatory conductor 1, Fig. 1, with axis 4, is mounted on a slab of lowloss dielectric material 2, the underside of which is clad with conductive material to form a ground plane 3. A method of determining the shape of the conductor 1 is described, equations being given. A further ground plane may be provided above the conductor 1, with a slit cut in it, to permit transmission or reception over the length of said slit. It is also possible to dispsene with any ground plane. The aerial is suitable for installation in radio-guided missiles.
GB22140/68A 1968-05-09 1968-05-09 Improvements relating to microwave antenna arrays Expired GB1269633A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB22140/68A GB1269633A (en) 1968-05-09 1968-05-09 Improvements relating to microwave antenna arrays
US822143A US3596271A (en) 1968-05-09 1969-05-06 Microwave antenna having an undulating conductor with variable pitch and amplitude

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB22140/68A GB1269633A (en) 1968-05-09 1968-05-09 Improvements relating to microwave antenna arrays

Publications (1)

Publication Number Publication Date
GB1269633A true GB1269633A (en) 1972-04-06

Family

ID=10174544

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22140/68A Expired GB1269633A (en) 1968-05-09 1968-05-09 Improvements relating to microwave antenna arrays

Country Status (2)

Country Link
US (1) US3596271A (en)
GB (1) GB1269633A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3272236D1 (en) * 1981-03-04 1986-09-04 Secr Defence Brit Stripline antenna
CA1242796A (en) * 1984-10-12 1988-10-04 Yoshihiro Kitsuda Microwave plane antenna
US6087778A (en) * 1996-06-28 2000-07-11 Lam Research Corporation Scalable helicon wave plasma processing device with a non-cylindrical source chamber having a serpentine antenna
USD406590S (en) * 1997-10-02 1999-03-09 Terk Technologies Corporation Antenna casing

Also Published As

Publication number Publication date
US3596271A (en) 1971-07-27

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