FR2455369A1 - Monopulse antenna with two planar arrays - enlarges measuring angle by providing uniformly distributed wave energy - Google Patents

Monopulse antenna with two planar arrays - enlarges measuring angle by providing uniformly distributed wave energy

Info

Publication number
FR2455369A1
FR2455369A1 FR7910529A FR7910529A FR2455369A1 FR 2455369 A1 FR2455369 A1 FR 2455369A1 FR 7910529 A FR7910529 A FR 7910529A FR 7910529 A FR7910529 A FR 7910529A FR 2455369 A1 FR2455369 A1 FR 2455369A1
Authority
FR
France
Prior art keywords
sum
planar arrays
enlarges
centre
uniformly distributed
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.)
Granted
Application number
FR7910529A
Other languages
French (fr)
Other versions
FR2455369B1 (en
Inventor
Robert Pierrot
Roland Carre
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7910529A priority Critical patent/FR2455369A1/en
Publication of FR2455369A1 publication Critical patent/FR2455369A1/en
Application granted granted Critical
Publication of FR2455369B1 publication Critical patent/FR2455369B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H01Q25/02—Antennas or antenna systems providing at least two radiating patterns providing sum and difference patterns

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

A monopulse antenna of enlarged angular dimension comprises two planar arrays of elementary antenna arranged about a centre (O) of symmetry and divided into three zones (A, B, A'). The outer zones (A,A') are symmetrical about the middle zone (B) and the centre (O) and are coupled to respective energy distributors (10,12,21) of an electromagnetic energy distribution system (6). The centre distributor produces sum and difference signals fed to respective summing circuits (15,17). A hybrid coupler (13) connected to the outer distributors also supplies a sum and difference signal to the respective summing circuits which then produce respectively output sum and difference signals. The characteristics of waves received by the elementary antenna are modified according to two laws of identical energy distribution to produce at the outputs of the summing circuits the sum and difference of signals corresponding to these laws.
FR7910529A 1979-04-25 1979-04-25 Monopulse antenna with two planar arrays - enlarges measuring angle by providing uniformly distributed wave energy Granted FR2455369A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7910529A FR2455369A1 (en) 1979-04-25 1979-04-25 Monopulse antenna with two planar arrays - enlarges measuring angle by providing uniformly distributed wave energy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7910529A FR2455369A1 (en) 1979-04-25 1979-04-25 Monopulse antenna with two planar arrays - enlarges measuring angle by providing uniformly distributed wave energy

Publications (2)

Publication Number Publication Date
FR2455369A1 true FR2455369A1 (en) 1980-11-21
FR2455369B1 FR2455369B1 (en) 1983-07-18

Family

ID=9224739

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7910529A Granted FR2455369A1 (en) 1979-04-25 1979-04-25 Monopulse antenna with two planar arrays - enlarges measuring angle by providing uniformly distributed wave energy

Country Status (1)

Country Link
FR (1) FR2455369A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4827270A (en) * 1986-12-22 1989-05-02 Mitsubishi Denki Kabushiki Kaisha Antenna device
EP0577520A1 (en) * 1992-07-03 1994-01-05 Thomson-Csf Antenna for a secondary radar in S-mode
WO1998001771A1 (en) * 1996-07-05 1998-01-15 Sperry Marine Inc. A beam sharpened, low sidelobe antenna system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3594811A (en) * 1968-02-09 1971-07-20 Thomson Csf Sum and difference antenna
US3803624A (en) * 1972-09-01 1974-04-09 Gen Electric Monopulse radar antenna array feed network
US4101892A (en) * 1975-11-19 1978-07-18 Andrew Alford Localizer antenna array for use with localizer transmitters operating at one carrier frequency

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3594811A (en) * 1968-02-09 1971-07-20 Thomson Csf Sum and difference antenna
US3803624A (en) * 1972-09-01 1974-04-09 Gen Electric Monopulse radar antenna array feed network
US4101892A (en) * 1975-11-19 1978-07-18 Andrew Alford Localizer antenna array for use with localizer transmitters operating at one carrier frequency

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/68 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4827270A (en) * 1986-12-22 1989-05-02 Mitsubishi Denki Kabushiki Kaisha Antenna device
EP0577520A1 (en) * 1992-07-03 1994-01-05 Thomson-Csf Antenna for a secondary radar in S-mode
FR2693317A1 (en) * 1992-07-03 1994-01-07 Thomson Csf Secondary radar antenna operating in Mode S.
US5302953A (en) * 1992-07-03 1994-04-12 Thomson-Csf Secondary radar antenna operating in S mode
WO1998001771A1 (en) * 1996-07-05 1998-01-15 Sperry Marine Inc. A beam sharpened, low sidelobe antenna system

Also Published As

Publication number Publication date
FR2455369B1 (en) 1983-07-18

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Legal Events

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