US3789299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Probe for radiation detector
Assignee: Narda Microwave Corp
•
Filing: 1971-11-05
•
Granted: 1974-01-29
•
Expires: 1991-11-05
Abstract
Abstract An elongated probe of materials having free space characteristics, supports, and antenna means at one end and conducting means aligned with its major axis for interconnection with an appropriate metering device.
Inventors
- 👤 E Aslan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:58
CPC Classifications
G; G01; G01R; G01R29/00; G01R29/08; G01R29/0864; G01R29/0878
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
117 words
A high frequency radiation detector assembly comprising first and second antennas arranged in a substantially common plane responsive to a radiated electric field each to produce a respective radio frequency electric current commensurate with the strength of said field and each mounted on one end of a substantially straight elongated non-conductive means, electrically conductive means disposed orthogonally to said antennas extending through and substantially aligned with the major axis of said elongated means and connected to said antennas, and first and second sensing means each coupled to a respective antenna and each mounted at said one end, each sensing means being responsive to the respective said radio frequency electric current to produce a commensurate direct current potential.
Claim 2
Dependent Claim
117 words
A high frequency radiation detector assembly comprising first and second antennas arranged in a substantially common plane responsive to a radiated electric field each to produce a respective radio frequency electric current commensurate with the strength of said field and each mounted on one end of a substantially straight elongated non-conductive means, electrically conductive means disposed orthogonally to said antennas extending through and substantially aligned with the major axis of said elongated means and connected to said antennas, and first and second sensing means each coupled to a respective antenna and each mounted at said one end, each sensing means being responsive to the respective said radio frequency electric current to produce a commensurate direct current potential.
Claim 3
Dependent Claim
41 words
A radiation detector assembly as defined in claim 1, including spacing means of predetermined length and having free space characteristics, and means for mounting said spacing means on said one end between said antennas and the source of said electric field.
Claim 4
Dependent Claim
48 words
The combination defined in claim 2, wherein said spacing means is removably mounted on said probe, including further spacing means having free space characteristics connectable to said probe, and further antenna means mounted on said further spacing means adapted to respond to an electromagnetic field of different frequency.
Claim 5
Dependent Claim
24 words
A radiation detector assembly as defined in claim 1, wherein said electrically conductive means includes by-pass capacitors located approximately one-half wavelength from said antennas.
Claim 6
Dependent Claim
30 words
A radiation detector assembly as defined in claim 4, including ferrite means in proximity to the sensing means and effective to isolate said electrically conductive means from said electric field.
Claim 7
Dependent Claim
36 words
A radiation detector assembly as defined in claim 5, including ferrite means disposed at the end of said non-conductive means remote from said sensing means and effective to isolate said conductive means from said electric field.
Claim 8
Dependent Claim
14 words
A radiation detector assembly as defined in claim 1, wherein said antennas comprise dipoles.
Claim 9
Dependent Claim
28 words
A radiation detector assembly as defined in claim 1, wherein each antenna and sensing means comprises elements disposed substantially within a plane extending orthogonally from said major axis.
Claim 10
Dependent Claim
36 words
A radiation detector assembly according to claim 1, wherein each antenna and sensing means is elongate and said second antenna and second sensing means are disposed at right angles to the first antenna and sensing means.
Claim 11
Dependent Claim
28 words
A radiation detector assembly according to claim 1, wherein said electrically conductive means couple said sensing means to a meter responsive to the amount of voltage generated therein.
Claim 12
Dependent Claim
31 words
A radiation detector assembly as defined in claim 1, wherein each antenna and sensing means is elongate and has its major axis orthogonal to the major axis of said non-conductive means.
Claim 13
Dependent Claim
45 words
A radiation detector assembly as defined in claim 1, wherein each antenna and sensing means is elongate and the first antenna is aligned with the first sensing means and disposed at an angle to the second antenna which is aligned with the second sensing means.
Claim 14
Dependent Claim
30 words
A radiation detector assembly as defined in claim 1, wherein said first and second antennas are disposed in substantially the same planes as the first and second sensing means, respectively.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |