FR2606957B1 - Transpondeur passif - Google Patents
Transpondeur passifInfo
- Publication number
- FR2606957B1 FR2606957B1 FR8615911A FR8615911A FR2606957B1 FR 2606957 B1 FR2606957 B1 FR 2606957B1 FR 8615911 A FR8615911 A FR 8615911A FR 8615911 A FR8615911 A FR 8615911A FR 2606957 B1 FR2606957 B1 FR 2606957B1
- Authority
- FR
- France
- Prior art keywords
- passive transponder
- transponder
- passive
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
- G01S13/75—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors
- G01S13/751—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal
- G01S13/753—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal using frequency selective elements, e.g. resonator
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/06—Details
- H01Q9/065—Microstrip dipole antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
- H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8615911A FR2606957B1 (fr) | 1986-11-13 | 1986-11-13 | Transpondeur passif |
EP87115247A EP0268089B1 (fr) | 1986-10-22 | 1987-10-19 | Transpondeur passif |
AT87115247T ATE66749T1 (de) | 1986-10-22 | 1987-10-19 | Passives antwortgeraet. |
DE8787115247T DE3772523D1 (de) | 1986-10-22 | 1987-10-19 | Passives antwortgeraet. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8615911A FR2606957B1 (fr) | 1986-11-13 | 1986-11-13 | Transpondeur passif |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2606957A1 FR2606957A1 (fr) | 1988-05-20 |
FR2606957B1 true FR2606957B1 (fr) | 1988-12-09 |
Family
ID=9340851
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8615911A Expired FR2606957B1 (fr) | 1986-10-22 | 1986-11-13 | Transpondeur passif |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2606957B1 (fr) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2311422A1 (fr) * | 1975-05-15 | 1976-12-10 | France Etat | Doublet replie en plaques |
FR2346870A1 (fr) * | 1976-04-02 | 1977-10-28 | Mecaniplast | Antenne perfectionnee pour la reception des emissions u.h.f. |
AT374596B (de) * | 1979-04-20 | 1984-05-10 | Enander Bengt | Zum auffinden von lawinenopfern dienender, am koerper zu tragender antwortsender |
EP0172445B1 (fr) * | 1984-07-30 | 1989-11-08 | Asulab S.A. | Transpondeur passif, notamment pour la recherche de personnes victimes d'une avalanche |
-
1986
- 1986-11-13 FR FR8615911A patent/FR2606957B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2606957A1 (fr) | 1988-05-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |
Effective date: 20060731 |