DK143827C - PASSIVE ANTENNA ELEMENT - Google Patents
PASSIVE ANTENNA ELEMENTInfo
- Publication number
- DK143827C DK143827C DK264274A DK264274A DK143827C DK 143827 C DK143827 C DK 143827C DK 264274 A DK264274 A DK 264274A DK 264274 A DK264274 A DK 264274A DK 143827 C DK143827 C DK 143827C
- Authority
- DK
- Denmark
- Prior art keywords
- antenna element
- passive antenna
- passive
- antenna
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
- H01Q15/22—Reflecting surfaces; Equivalent structures functioning also as polarisation filter
-
- 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
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/44—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element
- H01Q3/46—Active lenses or reflecting arrays
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US363029A US3906514A (en) | 1971-10-27 | 1973-05-23 | Dual polarization spiral antenna |
US36302973 | 1973-05-23 |
Publications (3)
Publication Number | Publication Date |
---|---|
DK264274A DK264274A (en) | 1975-03-17 |
DK143827B DK143827B (en) | 1981-10-12 |
DK143827C true DK143827C (en) | 1982-03-08 |
Family
ID=23428485
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK264274A DK143827C (en) | 1973-05-23 | 1974-05-14 | PASSIVE ANTENNA ELEMENT |
Country Status (6)
Country | Link |
---|---|
CA (1) | CA1018276A (en) |
DE (1) | DE2424819A1 (en) |
DK (1) | DK143827C (en) |
FR (1) | FR2231127B1 (en) |
GB (1) | GB1475319A (en) |
IT (1) | IT1012736B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3949407A (en) * | 1972-12-25 | 1976-04-06 | Harris Corporation | Direct fed spiral antenna |
FR2522888A1 (en) * | 1982-03-02 | 1983-09-09 | Thomson Csf | ANTENNA WITH DOUBLE REFLECTOR WITH POLARIZATION TRANSFORMER INCORPORATED |
-
1974
- 1974-05-14 DK DK264274A patent/DK143827C/en not_active IP Right Cessation
- 1974-05-14 CA CA199,765A patent/CA1018276A/en not_active Expired
- 1974-05-22 DE DE19742424819 patent/DE2424819A1/en not_active Withdrawn
- 1974-05-22 FR FR7417862A patent/FR2231127B1/fr not_active Expired
- 1974-05-22 IT IT2307674A patent/IT1012736B/en active
- 1974-05-23 GB GB2318674A patent/GB1475319A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DK143827B (en) | 1981-10-12 |
GB1475319A (en) | 1977-06-01 |
DE2424819A1 (en) | 1974-12-19 |
FR2231127B1 (en) | 1979-02-16 |
FR2231127A1 (en) | 1974-12-20 |
AU6932874A (en) | 1975-11-27 |
CA1018276A (en) | 1977-09-27 |
IT1012736B (en) | 1977-03-10 |
DK264274A (en) | 1975-03-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
NL7317677A (en) | MOUNTING ELEMENT. | |
FI54388C (en) | SAETT ATT FRAMSTAELLA EN EJEKTORANORDNING | |
AT339557B (en) | SOUND-SOUND ELEMENT | |
IT1046788B (en) | PESTICIDES | |
FI56366B (en) | SAETT ATT FRAMSTAELLA GLASFIBERPRODUKT | |
SE389769B (en) | ANTENNA SYSTEM | |
BE810147A (en) | THIOUREES N | |
BE812629A (en) | RETRO-REFLECTIVE ELEMENT | |
SE394542B (en) | ANTENNA SYSTEM | |
IT1028095B (en) | TUNING DEVICE | |
AT336234B (en) | PRE-FULLY STRUCTURAL ELEMENT | |
DK144158C (en) | READER | |
SE389770B (en) | ANTENNA SYSTEM | |
IT1053763B (en) | PESTICIDES | |
TR18223A (en) | PESTICIDES | |
IT1012438B (en) | RECONFIGURATION DEVICE | |
SE389744B (en) | ANTENNA SYSTEM | |
IT1002413B (en) | RADIO SPOLETTA | |
DK143827C (en) | PASSIVE ANTENNA ELEMENT | |
BE811466A (en) | SUBSTITUTED GUANYLHYDRAZONES | |
FI54154C (en) | ANORDNING FOER ATT TILLVERKA SLIPMASSA | |
BE811582A (en) | OVERCAPING ELEMENT | |
BE814932A (en) | THIADIAZOLEUREES HERBICIDES | |
IT1054123B (en) | PYROSXIN PHOSPHOSERINATE | |
FI56691B (en) | SAETT ATT FRAMSTAELLA MODIFIERINGSAEMNEN FOER AMINOPLASTHARTSER |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PBP | Patent lapsed |