DK144578C - Antenneelement til direkte foedning - Google Patents
Antenneelement til direkte foedningInfo
- Publication number
- DK144578C DK144578C DK60576A DK60576A DK144578C DK 144578 C DK144578 C DK 144578C DK 60576 A DK60576 A DK 60576A DK 60576 A DK60576 A DK 60576A DK 144578 C DK144578 C DK 144578C
- Authority
- DK
- Denmark
- Prior art keywords
- antenna
- direct animal
- animal
- direct
- animal antenna
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
-
- 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
- H01Q9/27—Spiral antennas
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/555,796 US3949407A (en) | 1972-12-25 | 1975-03-06 | Direct fed spiral antenna |
US55579675 | 1975-03-06 |
Publications (3)
Publication Number | Publication Date |
---|---|
DK60576A DK60576A (da) | 1976-09-07 |
DK144578B DK144578B (da) | 1982-03-29 |
DK144578C true DK144578C (da) | 1982-09-13 |
Family
ID=24218657
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK60576A DK144578C (da) | 1975-03-06 | 1976-02-13 | Antenneelement til direkte foedning |
Country Status (7)
Country | Link |
---|---|
US (1) | US3949407A (da) |
JP (1) | JPS51112250A (da) |
CA (1) | CA1064608A (da) |
DE (1) | DE2608987A1 (da) |
DK (1) | DK144578C (da) |
FR (1) | FR2303391A1 (da) |
GB (1) | GB1533463A (da) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2646974B1 (fr) * | 1976-02-10 | 1991-10-11 | Thomson Csf | Dispositif dephaseur a diodes pour antenne a balayage electronique comportant un dispositif de blocage et antenne ainsi constituee |
US4243993A (en) * | 1979-11-13 | 1981-01-06 | The Boeing Company | Broadband center-fed spiral antenna |
FR2505098A1 (fr) * | 1981-04-29 | 1982-11-05 | Modern Radio Sarl | Capteur d'ondes |
US4554554A (en) * | 1983-09-02 | 1985-11-19 | The United States Of America As Represented By The Secretary Of The Navy | Quadrifilar helix antenna tuning using pin diodes |
US4605934A (en) * | 1984-08-02 | 1986-08-12 | The Boeing Company | Broad band spiral antenna with tapered arm width modulation |
US4949092A (en) * | 1984-11-08 | 1990-08-14 | Highes Aircraft Company | Modularized contoured beam direct radiating antenna |
GB2207556B (en) * | 1986-04-12 | 1989-11-29 | Plessey Co Plc | Improvements in or relating to spiral antennas. |
GB8613322D0 (en) * | 1986-06-02 | 1986-07-09 | British Broadcasting Corp | Array antenna & element |
GB8624807D0 (en) * | 1986-10-16 | 1986-11-19 | C S Antennas Ltd | Antenna construction |
US4905011A (en) * | 1987-07-20 | 1990-02-27 | E-Systems, Inc. | Concentric ring antenna |
US5453752A (en) * | 1991-05-03 | 1995-09-26 | Georgia Tech Research Corporation | Compact broadband microstrip antenna |
US5220340A (en) * | 1992-04-29 | 1993-06-15 | Lotfollah Shafai | Directional switched beam antenna |
US5631572A (en) * | 1993-09-17 | 1997-05-20 | Teradyne, Inc. | Printed circuit board tester using magnetic induction |
US5434575A (en) * | 1994-01-28 | 1995-07-18 | California Microwave, Inc. | Phased array antenna system using polarization phase shifting |
US5578930A (en) * | 1995-03-16 | 1996-11-26 | Teradyne, Inc. | Manufacturing defect analyzer with improved fault coverage |
JPH0974307A (ja) * | 1995-09-05 | 1997-03-18 | Murata Mfg Co Ltd | チップアンテナ |
US6023250A (en) * | 1998-06-18 | 2000-02-08 | The United States Of America As Represented By The Secretary Of The Navy | Compact, phasable, multioctave, planar, high efficiency, spiral mode antenna |
SE520836C3 (sv) * | 1998-11-18 | 2003-10-01 | Saab Ab | Repeterstörsändare samt hylsarrangemang för densamma |
DE19929879A1 (de) * | 1999-06-29 | 2001-01-18 | Bosch Gmbh Robert | Spiralantenne |
JP2003243922A (ja) * | 2002-02-15 | 2003-08-29 | Toyota Central Res & Dev Lab Inc | アンテナ装置 |
US6753825B2 (en) * | 2002-04-23 | 2004-06-22 | Broadcom | Printed antenna and applications thereof |
US6646621B1 (en) * | 2002-04-25 | 2003-11-11 | Harris Corporation | Spiral wound, series fed, array antenna |
US6765542B2 (en) | 2002-09-23 | 2004-07-20 | Andrew Corporation | Multiband antenna |
US20040110481A1 (en) * | 2002-12-07 | 2004-06-10 | Umesh Navsariwala | Antenna and wireless device utilizing the antenna |
US6853351B1 (en) * | 2002-12-19 | 2005-02-08 | Itt Manufacturing Enterprises, Inc. | Compact high-power reflective-cavity backed spiral antenna |
US7586462B1 (en) | 2007-01-29 | 2009-09-08 | Stephen G. Tetorka | Physically small spiral antenna |
US7791552B1 (en) | 2007-10-12 | 2010-09-07 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Cellular reflectarray antenna and method of making same |
US20090267846A1 (en) * | 2008-04-28 | 2009-10-29 | Johnson Michael P | Electromagnetic Field Power Density Monitoring System and Methods |
CN105140658B (zh) * | 2015-07-28 | 2017-12-19 | 东南大学 | 一种可重构的单脉冲天线 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB451213A (en) * | 1935-03-04 | 1936-07-31 | Richard Jensen | Improvements in wireless aerials |
US3039099A (en) * | 1959-06-25 | 1962-06-12 | Herman N Chait | Linearly polarized spiral antenna system |
CA1018276A (en) * | 1973-05-23 | 1977-09-27 | Harris Corporation | Dual polarization element antenna |
-
1975
- 1975-03-06 US US05/555,796 patent/US3949407A/en not_active Expired - Lifetime
-
1976
- 1976-02-03 CA CA244,943A patent/CA1064608A/en not_active Expired
- 1976-02-05 GB GB4632/76A patent/GB1533463A/en not_active Expired
- 1976-02-12 FR FR7603870A patent/FR2303391A1/fr not_active Withdrawn
- 1976-02-13 DK DK60576A patent/DK144578C/da active
- 1976-02-13 JP JP51014800A patent/JPS51112250A/ja active Pending
- 1976-03-04 DE DE19762608987 patent/DE2608987A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
GB1533463A (en) | 1978-11-22 |
CA1064608A (en) | 1979-10-16 |
JPS51112250A (en) | 1976-10-04 |
DE2608987A1 (de) | 1976-09-16 |
DK60576A (da) | 1976-09-07 |
FR2303391A1 (fr) | 1976-10-01 |
US3949407A (en) | 1976-04-06 |
DK144578B (da) | 1982-03-29 |
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