NL67699C - - Google Patents
Info
- Publication number
- NL67699C NL67699C NL67699DA NL67699C NL 67699 C NL67699 C NL 67699C NL 67699D A NL67699D A NL 67699DA NL 67699 C NL67699 C NL 67699C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
- H01P7/06—Cavity resonators
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- 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
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- 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
- G01S7/40—Means for monitoring or calibrating
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)
- Geophysics And Detection Of Objects (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US450226A US2539511A (en) | 1942-07-08 | 1942-07-08 | Radar system test equipment |
Publications (1)
Publication Number | Publication Date |
---|---|
NL67699C true NL67699C (de) |
Family
ID=23787259
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL67699D NL67699C (de) | 1942-07-08 |
Country Status (4)
Country | Link |
---|---|
US (1) | US2539511A (de) |
FR (1) | FR949594A (de) |
GB (1) | GB599486A (de) |
NL (1) | NL67699C (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2838850A (en) * | 1943-09-15 | 1958-06-17 | Edward B Stephenson | Virtual target for echo ranging apparatus |
US2605459A (en) * | 1943-10-23 | 1952-07-29 | Jackson H Cook | Monitoring apparatus for radio pulse transmission systems |
US2652636A (en) * | 1946-05-24 | 1953-09-22 | Raymond L Garman | Radio echo training system |
US2656533A (en) * | 1948-10-28 | 1953-10-20 | Westinghouse Electric Corp | Performance indicator arrangement for wave energy systems |
US2692984A (en) * | 1950-08-30 | 1954-10-26 | Sperry Corp | Bridge obstruction marker for radar navigation |
US2793362A (en) * | 1951-04-13 | 1957-05-21 | Svenska Aktiebolaget Gasacumul | Reflector system intended for radar purposes |
NL113091C (de) * | 1959-05-01 | |||
US4608571A (en) * | 1981-03-26 | 1986-08-26 | Luly Robert A | Collapsible parabolic reflector |
US4527166A (en) * | 1981-03-26 | 1985-07-02 | Luly Robert A | Lightweight folding parabolic reflector and antenna system |
US4683475A (en) * | 1981-07-02 | 1987-07-28 | Luly Robert A | Folding dish reflector |
JP3493428B2 (ja) * | 2000-07-04 | 2004-02-03 | 新潟大学長 | 癌温熱治療装置 |
CN102508216B (zh) * | 2011-10-27 | 2014-12-24 | 零八一电子集团有限公司 | 脉冲测量雷达主要性能指标的自动测试方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB507473A (en) * | 1936-09-15 | 1939-06-14 | Otto Bormann | Improvements in or relating to coupling devices for use in the production, amplification or reception of ultra-short waves |
US2134716A (en) * | 1936-10-20 | 1938-11-01 | Gunn Ross | Measuring speed and distance by radiant energy |
US2253589A (en) * | 1938-08-06 | 1941-08-26 | George C Southworth | Generation and transmission of high frequency oscillations |
US2460827A (en) * | 1942-05-04 | 1949-02-08 | Frank C Isely | Testing radio echo equipment |
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0
- NL NL67699D patent/NL67699C/xx active
-
1942
- 1942-07-08 US US450226A patent/US2539511A/en not_active Expired - Lifetime
-
1943
- 1943-03-03 GB GB3536/43A patent/GB599486A/en not_active Expired
-
1947
- 1947-07-18 FR FR949594D patent/FR949594A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR949594A (fr) | 1949-09-02 |
US2539511A (en) | 1951-01-30 |
GB599486A (en) | 1948-03-15 |