GB495489A - Improvements in or relating to aerials and feeder systems - Google Patents
Improvements in or relating to aerials and feeder systemsInfo
- Publication number
- GB495489A GB495489A GB17436/37A GB1743637A GB495489A GB 495489 A GB495489 A GB 495489A GB 17436/37 A GB17436/37 A GB 17436/37A GB 1743637 A GB1743637 A GB 1743637A GB 495489 A GB495489 A GB 495489A
- Authority
- GB
- United Kingdom
- Prior art keywords
- feeder
- undesired signals
- auxiliary conductor
- conductor
- aerial
- 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
-
- 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
- H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
- H01Q9/32—Vertical arrangement of element
- H01Q9/38—Vertical arrangement of element with counterpoise
Landscapes
- Details Of Aerials (AREA)
- Waveguides (AREA)
Abstract
495,489. Wireless signalling. CORK, E. C., and PAWSEY, J. L. June 23, 1937, No. 17436. [Class 40 (v)] In order to attenuate undesired signals on the outside of a feeder 2, supplying a transmitting aerial 1, an auxiliary conductor 7 is connected between the end A of the feeder and a point B thereon at a distance l from the end A, said conductor 7 being of length l+#/2 and bent as shown to lie on one side of the main feeder, # being the wavelength of the undesired signals. Distortion of the directional diagram of the aerial may be avoided by the provision of a similar auxiliary conductor on the opposite side of the feeder 2. Further attenuation of undesired signals is produced by the quarter wave conductors 3 ... 6 extending in mutually perpendicular pairs from the points A, B of the feeder 2. The auxiliary conductor 7 may alternatively take a zigzag form extending on both sides of the main feeder, Fig. 2 (not shown), or surround the main feeder in the form of a helix, Fig. 3 (not shown). Specification 438,506 is referred to.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB17436/37A GB495489A (en) | 1937-06-23 | 1937-06-23 | Improvements in or relating to aerials and feeder systems |
| US214437A US2267446A (en) | 1937-06-23 | 1938-06-18 | Aerial and feeder system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB17436/37A GB495489A (en) | 1937-06-23 | 1937-06-23 | Improvements in or relating to aerials and feeder systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB495489A true GB495489A (en) | 1938-11-15 |
Family
ID=10095157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB17436/37A Expired GB495489A (en) | 1937-06-23 | 1937-06-23 | Improvements in or relating to aerials and feeder systems |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2267446A (en) |
| GB (1) | GB495489A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3181092A (en) * | 1960-10-03 | 1965-04-27 | Zh Denryoku Chuo Keukyujo | Wave trap by parallel sub-conductors |
| US3199108A (en) * | 1963-03-25 | 1965-08-03 | Andrew Corp | Vertical-radiator antenna |
| US5023622A (en) * | 1989-07-13 | 1991-06-11 | Blaese Herbert R | On-glass antenna with center-fed dipole operation |
| ATE106611T1 (en) * | 1989-07-13 | 1994-06-15 | Blaese Herbert R | COUNTERBALANCED WINDOW AERIAL. |
-
1937
- 1937-06-23 GB GB17436/37A patent/GB495489A/en not_active Expired
-
1938
- 1938-06-18 US US214437A patent/US2267446A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2267446A (en) | 1941-12-23 |
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