Patent US3727230A successfully refreshed from Google Patents.
US3727230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antenna having a combined dipole and loop portion
Assignee: Sony Corp
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Filing: 1971-03-03
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Granted: 1973-04-10
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Expires: 1991-03-03
Abstract
Abstract An antenna which in one embodiment is formed from a plate and which has openings formed therein wherein the opening comprises one-eighth to seven-eighths of the total area of the plate and which forms a composite antenna having a dipole and loop portion. The antenna may also be formed in printed circuit form as a thin foil upon a supporting member and may be directly mounted on a television set, for example.
Inventors
- 👤 T Doi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:03
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/08; H01Q19/00; H01Q19/10; H01Q19/12; H01Q19/13; H01Q19/28; H01Q19/30; H01Q9/00; H01Q9/04; H01Q9/16; H01Q9/28; H01Q9/285
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
92 words
An antenna comprising: a conductive plate member; at least a pair of window openings formed in said plate and arranged symmetrically with respect to the center of the conductive plate member so as to form a loop antenna and a dipole antenna in the plate member, the window openings having an area in the range between one-eighth to seven-eighths of that enclosed by said conductive plate member such that said conductive plate member functions as a combination loop and dipole antenna; and a dipole antenna mounted forwardly of said conductive plate member.
Claim 2
Dependent Claim
92 words
An antenna comprising: a conductive plate member; at least a pair of window openings formed in said plate and arranged symmetrically with respect to the center of the conductive plate member so as to form a loop antenna and a dipole antenna in the plate member, the window openings having an area in the range between one-eighth to seven-eighths of that enclosed by said conductive plate member such that said conductive plate member functions as a combination loop and dipole antenna; and a dipole antenna mounted forwardly of said conductive plate member.
Claim 3
Dependent Claim
24 words
An antenna as claimed in claim 1 comprising an impedance matching means mechanically connected to said dipole antenna and to said conductive plate member.
Claim 4
Dependent Claim
18 words
An antenna as claimed in claim 2 wherein said impedance matching means comprises a twin-lead solid conductive member.
Claim 5
Dependent Claim
95 words
An antenna comprising a parabolic conductive plate member, an insulator supporting said plate member, a pair of window openings formed in said plate and arranged symmetrically with respect to the center of said conductive plate member, the window openings having an area in the range between one-eighth to seven-eighths of that enclosed by said plate member, an impedance matching means with one end insulatingly attached to the center of said conductive plate member and formed of a twin-lead solid feeder, and a dipole antenna element mounted on the second end of said impedance matching means.
Claim 6
Dependent Claim
95 words
An antenna comprising a parabolic conductive plate member, an insulator supporting said plate member, a pair of window openings formed in said plate and arranged symmetrically with respect to the center of said conductive plate member, the window openings having an area in the range between one-eighth to seven-eighths of that enclosed by said plate member, an impedance matching means with one end insulatingly attached to the center of said conductive plate member and formed of a twin-lead solid feeder, and a dipole antenna element mounted on the second end of said impedance matching means.
Claim 7
Dependent Claim
33 words
An antenna as claimed in claim 4 wherein said dipole antenna element is connected to the impedance matching means such that said dipole element may be pivoted relative to said conductive plate member.
Claim 8
Dependent Claim
27 words
An antenna as claimed in claim 4 wherein the impedance matching means is pivotally attached to said conductive plate member so that it may be folded upwards.
Claim 9
Dependent Claim
83 words
An antenna comprising: a parabolic conductive plate member; a pair of window openings formed in said plate and arranged symmetrically with respect to the center of said conductive plate member, the window openings having areas in the range between one-eighth to seven-eighths of that enclosed by said conductive plate member; a first antenna element mounted forwardly of said conductive plate member and serving as a radiator; and a second antenna element mounted forwardly of said first antenna element and serving as a director.
Claim 10
Dependent Claim
83 words
An antenna comprising: a parabolic conductive plate member; a pair of window openings formed in said plate and arranged symmetrically with respect to the center of said conductive plate member, the window openings having areas in the range between one-eighth to seven-eighths of that enclosed by said conductive plate member; a first antenna element mounted forwardly of said conductive plate member and serving as a radiator; and a second antenna element mounted forwardly of said first antenna element and serving as a director.
Claim 11
Dependent Claim
49 words
An antenna as claimed in claim 7 wherein the first antenna element is formed of a second conductive plate member and has formed theRein a second pair of window openings having an area in the range between one-eighth to seven-eighths of that enclosed by said second conductive plate member.
Claim 12
Dependent Claim
16 words
An antenna as claimed in claim 7 wherein said first antenna element comprises a dipole antenna.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-09 | 1976-10-09 | 1977-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-09 | 1980-10-09 | 1981-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-09 | 1984-10-09 | 1985-04-10 | $7700.00 | Window Closed / Lapsed |