Patent EP0506332A2 successfully refreshed from Google Patents.
US5963871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retractable multi-band antennas
Assignee: BlackBerry Ltd
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Filing: 1996-10-04
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Granted: 1999-10-05
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Expires: 2016-10-04
Abstract
Abstract According to exemplary embodiments of the present invention, retractable antennas are described for use in two or more frequency hyperbands. The retractable antennas can include a whip antenna, operable when the retractable antenna is extended and a non-uniform helical antenna, operable when the retractable antenna is retracted. For example, retractable antennas can be designed according to the present invention for usage in portable terminals capable of operating both at 800 MHz and at 1900 MHz. Tuning for the whip antenna is accomplished using a matching circuit. Tuning to both resonance frequencies for the non-uniform helical antenna can be accomplished by varying parameters of the helical structure including, for example, the pitch angle, coil diameter, length and number and spacing of the coil turns.
Inventors
- 👤 Ying Zhinong
- 👤 Kenneth Hakansson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:28
CPC Classifications
H; H01; H01Q; H01Q11/00; H01Q11/02; H01Q11/08; H01Q1/00; H01Q1/12; H01Q1/22; H01Q1/24; H01Q1/241; H01Q1/242; H01Q1/243; H01Q1/244; H01Q1/36; H01Q1/362; H01Q5/00; H01Q5/30; H01Q5/307; H01Q5/342; H01Q5/357
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
114 words
A multiband retractable antenna tuned to a first and a second resonant frequency comprising: a whip antenna having a matching network for tuning said whip antenna to both said first and second resonant frequencies selectively connected thereto; and a self-matching helical antenna tuned to said first and second resonant frequencies, including: only one elongated conductor formed as a spiral having a first section and a second section; said first section having a first pitch angle and said second section having a second pitch angle, said first pitch angle being different than said second pitch angle; wherein said first and second pitch angles are selected to tune said helical antenna to said second resonant frequency.
Claim 2
Dependent Claim
114 words
A multiband retractable antenna tuned to a first and a second resonant frequency comprising: a whip antenna having a matching network for tuning said whip antenna to both said first and second resonant frequencies selectively connected thereto; and a self-matching helical antenna tuned to said first and second resonant frequencies, including: only one elongated conductor formed as a spiral having a first section and a second section; said first section having a first pitch angle and said second section having a second pitch angle, said first pitch angle being different than said second pitch angle; wherein said first and second pitch angles are selected to tune said helical antenna to said second resonant frequency.
Claim 3
Dependent Claim
17 words
The retractable antenna of claim 1, wherein said elongated conductor has a source end and another end.
Claim 4
Dependent Claim
18 words
The retractable antenna of claim 2, wherein said first pitch angle is greater than said second pitch angle.
Claim 5
Dependent Claim
36 words
The retractable antenna of claim 3, wherein said first section is proximate said source end such that a bandwidth associated with said first resonant frequency is greater than a bandwidth associated with said second resonant frequency.
Claim 6
Dependent Claim
36 words
The retractable antenna of claim 3, wherein said second section is proximate said source end such that a bandwidth associated with said second resonant frequency is greater than a bandwidth associated with said first resonant frequency.
Claim 7
Dependent Claim
25 words
The retractable antenna of claim 1, wherein said elongated conductor has a length which is approximately one-quarter of a wavelength of said first resonant frequency.
Claim 8
Dependent Claim
115 words
A multi-band retractable antenna tuned to a first resonant frequency and a second resonant frequency comprising: a whip antenna having a matching network for tuning said whip antenna to said first and second resonant frequencies selectively connected thereto; and a self-matching helical antenna tuned to said first and second resonant frequencies including: only one elongated conductor formed as a spiral having a first section and a second section; said first section having a first coil diameter and said second section having a second coil diameter, said first coil diameter being different than said second coil diameter; wherein said first and second coil diameters are selected to tune said helical antenna to said second resonant frequency.
Claim 9
Dependent Claim
115 words
A multi-band retractable antenna tuned to a first resonant frequency and a second resonant frequency comprising: a whip antenna having a matching network for tuning said whip antenna to said first and second resonant frequencies selectively connected thereto; and a self-matching helical antenna tuned to said first and second resonant frequencies including: only one elongated conductor formed as a spiral having a first section and a second section; said first section having a first coil diameter and said second section having a second coil diameter, said first coil diameter being different than said second coil diameter; wherein said first and second coil diameters are selected to tune said helical antenna to said second resonant frequency.
Claim 10
Dependent Claim
23 words
The retractable antenna of claim 7, wherein said elongated conductor further comprises a third section, said third section having said first coil diameter.
Claim 11
Dependent Claim
17 words
The retractable antenna of claim 7, wherein said elongated conductor has a source end and another end.
Claim 12
Dependent Claim
18 words
The retractable antenna of claim 9, wherein said first coil diameter is greater than said second coil diameter.
Claim 13
Dependent Claim
15 words
The retractable antenna of claim 10, wherein said first section is proximate said source end.
Claim 14
Dependent Claim
15 words
The retractable antenna of claim 10, wherein said second section is proximate said another end.
Claim 15
Dependent Claim
16 words
The retractable antenna of claim 10, wherein said elongated conductor is shaped as two conical spirals.
Claim 16
Dependent Claim
25 words
The retractable antenna of claim 7, wherein said elongated conductor has a length which is approximately one-quarter of a wavelength of said first resonant frequency.
Claim 17
Dependent Claim
146 words
A mobile station which can communicate with at least one first type of radio communication network that uses a first frequency hyperband and at least one second type of radio communication network that uses a second frequency hyperband, said mobile station comprising: a dual hyperband, retractable antenna including a whip antenna portion tuned to both said first frequency hyperband and said second frequency hyperband for operating when said retractable antenna is in its extended position; a non-uniform helical antenna portion tuned to both said first frequency hyperband and said second frequency hyperband for operating when said retractable antenna is in its retracted position; a transceiver for transmitting and receiving signals using said dual hyperband, retractable antenna; and a processor for controlling said transceiver and processing said signals wherein said helical portion has a length that is approximately a quarter wavelength of one of said frequency hyperbands.
Claim 18
Dependent Claim
146 words
A mobile station which can communicate with at least one first type of radio communication network that uses a first frequency hyperband and at least one second type of radio communication network that uses a second frequency hyperband, said mobile station comprising: a dual hyperband, retractable antenna including a whip antenna portion tuned to both said first frequency hyperband and said second frequency hyperband for operating when said retractable antenna is in its extended position; a non-uniform helical antenna portion tuned to both said first frequency hyperband and said second frequency hyperband for operating when said retractable antenna is in its retracted position; a transceiver for transmitting and receiving signals using said dual hyperband, retractable antenna; and a processor for controlling said transceiver and processing said signals wherein said helical portion has a length that is approximately a quarter wavelength of one of said frequency hyperbands.
Claim 19
Dependent Claim
33 words
The mobile station of claim 15, wherein said non-uniform helical antenna portion is tuned to a first resonant frequency and a second resonant frequency based upon physical parameters of said non-uniform helical antenna.
Claim 20
Dependent Claim
20 words
The mobile station of claim 16, wherein said physical parameters include at least one of pitch angle and helix diameter.
Claim 21
Dependent Claim
27 words
The mobile station of claim 15, wherein said whip antenna is operatively connected to said matching network only when said retractable antenna is in its extended position.
Claim 22
Dependent Claim
15 words
The mobile station of claim 18, wherein said matching network is a coil matching network.
Claim 23
Dependent Claim
15 words
The mobile station of claim 18, wherein said matching network is a spiral matching network.
Claim 24
Dependent Claim
86 words
A multi-band retractable antenna comprising: a whip antenna; a matching network selectively connected to said whip antenna for tuning said whip antenna to at least two frequency bands, said matching network being connected to said whip antenna when said whip antenna is in its extended position and disconnected when said whip antenna is in its retracted position; and a self-matching helical antenna tuned to said at least two frequency bands and having a length that is aproximately a quarter wavelength of one of said frequency bands.
Claim 25
Dependent Claim
86 words
A multi-band retractable antenna comprising: a whip antenna; a matching network selectively connected to said whip antenna for tuning said whip antenna to at least two frequency bands, said matching network being connected to said whip antenna when said whip antenna is in its extended position and disconnected when said whip antenna is in its retracted position; and a self-matching helical antenna tuned to said at least two frequency bands and having a length that is aproximately a quarter wavelength of one of said frequency bands.
Claim 26
Dependent Claim
24 words
The antenna of claim 1 wherein said matching network is disconnected from said whip antenna when said whip antenna is in its retracted position.
Claim 27
Dependent Claim
24 words
The antenna of claim 7 wherein said matching network is disconnected from said whip antenna when said whip antenna is in its retracted position.
References Cited (Backward Citations)
US676332A
Cited
US1837678A
Cited
US2966679A
Cited
US2993204A
Cited
US3573840A
Cited
US4012744A
Cited
US4137534A
Cited
US4161737A
Cited
US4169267A
Cited
US4229743A
Cited
US4356492A
Cited
US4571595A
Cited
GB2175748A
Cited
US4742359A
Cited
US4723305A
Cited
US4868576A
Cited
US5020093A
Cited
US5363114A
Cited
US5204687A
Cited
US5216436A
Cited
EP0522806A2
Cited
US5353036A
Cited
US5311201A
Cited
JPH0637531A
Cited
US5550820A
Cited
US5446469A
Cited
US5438339A
Cited
US5532703A
Cited
US5479178A
Cited
US5451974A
Cited
EP0635898A1
Cited
EP0644606A1
Cited
EP0650215A2
Cited
EP0660440A1
Cited
US5594457A
Cited
EP0747989A1
Cited
US5635943A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-10-04 | 2003-04-05 | 2003-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-10-04 | 2007-04-05 | 2007-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-10-04 | 2011-04-05 | 2011-10-05 | $7700.00 | Window Closed / Lapsed |