ES371800A1 - Improvements in or relating to antenna systems - Google Patents
Improvements in or relating to antenna systemsInfo
- Publication number
- ES371800A1 ES371800A1 ES371800A ES371800A ES371800A1 ES 371800 A1 ES371800 A1 ES 371800A1 ES 371800 A ES371800 A ES 371800A ES 371800 A ES371800 A ES 371800A ES 371800 A1 ES371800 A1 ES 371800A1
- Authority
- ES
- Spain
- Prior art keywords
- horn
- probe
- rectangular
- reflector
- feeder
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/03—Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
- G01S7/034—Duplexers
Abstract
An aerial system for the simultaneous transmission and reception of two waves which are orthogonally polarized and which differ in frequency by an amount equivalent to a desired intermediate frequency, comprises a primary horn radiator 1, Fig. 1, which faces a reflector 11, and which is supported by stays 12, 13, 14, 15 from said reflector. Coaxial feeders 16, 17 from the rear of the reflector 11 extend along the stays 12, 13 into the horn 1. Said horn comprises a rectangular cross-section waveguide portion, which is terminated by a shortcircuiting plate 4, Fig. 2, at the rear, and which is flared out to a rectangular aperture in front. A transmitting probe 2 extends from the feeder 17 into the horn, near the aperture. It is disposed parallel to one pair of sides of the rectangular horn, and is fitted with a rod 23 of dielectric material to improve matching. A receiving probe 3 is constituted by a semiconductor diode which is disposed parallel to the other pair of sides of the rectangular horn and near the short-circuiting plate 4. The crosssection of the rectangular horn in the region of the short-circuiting plate may be such as to support the fundamental mode of the received waves, and the long side of the rectangular aperture of the horn may be parallel to the electric field of said waves. The casing of the diode of the probe 3 is secured to one wall of the rectangular cross-section waveguide portion of the horn, and a pin from its other side extends into a coaxial plug 26, for the feeder 16. To improve matching, the probe 3 is displaced away from the centre-line of the said rectangular cross-section, and a choke coupling 27 is provided for the plug 26. The probe 3 picks up a small portion of the energy transmitted by the probe 2, although it is orthogonally polarized, and this is heterodyned with received energy in the diode to produce an output at the intermediate frequency on the feeder 16. In another embodiment, a receiving probe (30), Fig. 3 (not shown), extends into the horn near the shortcircuiting plate from an associated semiconductor diode (31) outside the waveguide portion of the horn. A dielectric material rod (32) is fitted to the probe (30), to improve matching.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1434868A CH497088A (en) | 1968-09-25 | 1968-09-25 | Arrangement for simultaneous transmission and reception as well as for mixing the transmission and reception waves |
Publications (1)
Publication Number | Publication Date |
---|---|
ES371800A1 true ES371800A1 (en) | 1971-11-16 |
Family
ID=4400060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES371800A Expired ES371800A1 (en) | 1968-09-25 | 1969-09-23 | Improvements in or relating to antenna systems |
Country Status (8)
Country | Link |
---|---|
AT (1) | AT294922B (en) |
CH (1) | CH497088A (en) |
DE (1) | DE1941453C3 (en) |
ES (1) | ES371800A1 (en) |
FR (1) | FR2018813A1 (en) |
GB (1) | GB1236529A (en) |
NL (1) | NL6914097A (en) |
SE (1) | SE359969B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0060654A1 (en) * | 1981-03-13 | 1982-09-22 | Plessey South Africa Limited | Improvements in or relating to electronic distance measuring instruments |
DE3431160A1 (en) * | 1984-08-24 | 1986-03-06 | ANT Nachrichtentechnik GmbH, 7150 Backnang | DC AND HIGH FREQUENCY SIGNAL FEEDING FOR A DIODE |
-
1968
- 1968-09-25 CH CH1434868A patent/CH497088A/en not_active IP Right Cessation
-
1969
- 1969-08-05 AT AT754369A patent/AT294922B/en not_active IP Right Cessation
- 1969-08-14 DE DE19691941453 patent/DE1941453C3/en not_active Expired
- 1969-09-02 GB GB4336969A patent/GB1236529A/en not_active Expired
- 1969-09-16 FR FR6931404A patent/FR2018813A1/fr not_active Withdrawn
- 1969-09-17 NL NL6914097A patent/NL6914097A/xx unknown
- 1969-09-23 ES ES371800A patent/ES371800A1/en not_active Expired
- 1969-09-24 SE SE1311969A patent/SE359969B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE1941453B2 (en) | 1979-01-25 |
FR2018813A1 (en) | 1970-06-26 |
GB1236529A (en) | 1971-06-23 |
DE1941453C3 (en) | 1979-09-20 |
CH497088A (en) | 1970-09-30 |
NL6914097A (en) | 1970-03-31 |
SE359969B (en) | 1973-09-10 |
AT294922B (en) | 1971-12-10 |
DE1941453A1 (en) | 1970-04-09 |
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