Patent US6803835B2 successfully refreshed from Google Patents.
US6803835B2
Expired / Lapsed
US
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Integrated filter balun
Assignee: Avago Technologies International Sales Pte Ltd
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Filing: 2001-08-30
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Granted: 2004-10-12
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Expires: 2021-08-30
Abstract
Abstract A component that includes a first structure that is integrated with a second structure. The first structure is a lumped balanced to unbalanced circuit (balun) and the second structure is a resonator-based filter. The function of the balun is to move a signal from a differential form to a single ended form or from a single ended form to a differential form. The component has an area that is comparable to the area needed to implement the balun alone. However, the component now provides a filter function. Preferably, the substrate of the first structure also acts as a substrate for the second structure.
Inventors
- 👤 Michael L. Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:39
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/42; H03H7/422; H01; H01P; H01P1/00; H01P1/20; H01P5/00; H01P5/08; H01P5/10
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
52 words
A component comprising: a) a filter that includes a single ended input and a single ended output; b) a balanced to unbalanced circuit (balun) that includes a single ended port directly coupled to the single ended output of the filter and a differential port; wherein the balun is integrated with the filter.
Claim 2
Dependent Claim
52 words
A component comprising: a) a filter that includes a single ended input and a single ended output; b) a balanced to unbalanced circuit (balun) that includes a single ended port directly coupled to the single ended output of the filter and a differential port; wherein the balun is integrated with the filter.
Claim 3
Dependent Claim
95 words
The component of claim 1 further comprising a single ended input, a differential output, a first stage, and a second stage coupled to the first stage; wherein the filter is in the first stage; wherein the single ended input of the filter is coupled to the single ended input of the component; wherein the balun is in the second stage; wherein the single ended port of the balun is coupled to the singled ended output of the filter; and wherein the differential port of the balun is coupled to the differential output of the component.
Claim 4
Dependent Claim
95 words
The component of claim 1 further comprising a differential input, a single ended output, a first stage, and a second stage coupled to the first stage; wherein the balun is in the first stage; wherein the differential port of the balun is coupled to the differential input of the component; wherein the filter is in the second stage; wherein the single ended input of the filter is coupled to the single ended port of the balun; and wherein the single ended output of the filter is coupled to the single ended output of the component.
Claim 5
Dependent Claim
58 words
The component of claim 1 wherein the filter is one of a resonator-based filter, a filter that is implemented film bulk acoustic resonators (FBARs), and a filter that is implemented with surface acoustic wave (SAW) technology; and wherein the balun is implemented with one of at least two transmission lines and lumped elements that include inductors and capacitors.
Claim 6
Dependent Claim
40 words
A component comprising: a) a filter that includes a differential input and a differential output; b) a balanced to unbalanced circuit (balun) that includes a single ended port and a differential port; wherein the balun is integrated with the filter.
Claim 7
Dependent Claim
40 words
A component comprising: a) a filter that includes a differential input and a differential output; b) a balanced to unbalanced circuit (balun) that includes a single ended port and a differential port; wherein the balun is integrated with the filter.
Claim 8
Dependent Claim
93 words
The component of claim 5 further comprising a single ended input, a differential output, a first stage, and a second stage coupled to the first stage; wherein the balun is in the first stage; wherein the single ended port of the balun is coupled to the singled ended input of the component; wherein the filter is in the second stage; wherein the differential input of the filter is coupled to the differential port of the balun; and wherein the differential output of the filter is coupled to the differential output of the component.
Claim 9
Dependent Claim
93 words
The component of claim 5 further comprising a differential input, a single ended output, a first stage, and a second stage coupled to the first stage; wherein the filter is in the first stage; wherein the differential input of the filter is coupled to the differential input of the component; wherein the balun is in the second stage; wherein the differential port of the balun is coupled to the differential output of the filter; and wherein the single ended port of the balun is coupled to the single ended output of the component.
Claim 10
Dependent Claim
58 words
The component of claim 5 wherein the filter is one of a resonator-based filter, a filter that is implemented film bulk acoustic resonators (FBARs), and a filter that is implemented with surface acoustic wave (SAW) technology; and wherein the balun is implemented with one of at least two transmission lines and lumped elements that include inductors and capacitors.
Claim 11
Dependent Claim
112 words
A component comprising: a) a first terminal for receiving a single-ended input; b) a second terminal and a third terminal for providing a differential output; c) a first structure that includes a first electrode coupled to the first terminal and a second electrode; and d) a second structure that includes a first electrode coupled to the second electrode of the first structure and a second electrode that is coupled to the second terminal and a third electrode that is coupled to the third terminal; wherein the second structure is integrated with the first structure; wherein the first structure is a balanced to unbalanced circuit (balun) and the second structure is a filter.
Claim 12
Dependent Claim
112 words
A component comprising: a) a first terminal for receiving a single-ended input; b) a second terminal and a third terminal for providing a differential output; c) a first structure that includes a first electrode coupled to the first terminal and a second electrode; and d) a second structure that includes a first electrode coupled to the second electrode of the first structure and a second electrode that is coupled to the second terminal and a third electrode that is coupled to the third terminal; wherein the second structure is integrated with the first structure; wherein the first structure is a balanced to unbalanced circuit (balun) and the second structure is a filter.
Claim 13
Dependent Claim
15 words
The component of claim 9 wherein the filter is implemented with a half-ladder resonator-based filter.
Claim 14
Dependent Claim
14 words
The component of claim 9 wherein the filter includes differential inputs and differential outputs.
Claim 15
Dependent Claim
22 words
The component of claim 11 wherein the filter is implemented with one of a full-ladder resonator-based filter and a lattice resonator-based filter.
Claim 16
Dependent Claim
16 words
The component of claim 9 wherein the balun is implemented with at least two transmission lines.
Claim 17
Dependent Claim
18 words
The component of claim 9 wherein the balun is implemented with lumped elements that include inductors and capacitors.
Claim 18
Dependent Claim
36 words
The component of claim 14 , wherein the component includes input ports and output ports, the component further comprising at least two elements for performing impedance transformation at the input ports and at the output ports.
Claim 19
Dependent Claim
37 words
The component of claim 9 wherein the filter is one of a resonator-based filter, a filter that is implemented with film bulk acoustic resonators (FBARs) and a filter that is implemented with surface acoustic wave (SAW) technology.
Claim 20
Dependent Claim
35 words
The component of claim 9 wherein the first structure acts as a substrate for the second structure, and the second structure is one of bonded to the first structure and flip-mounted on the first structure.
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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) | 2007-10-12 | 2008-04-12 | 2008-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-10-12 | 2012-04-12 | 2012-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-10-12 | 2016-04-12 | 2016-10-12 | $7700.00 | Window Closed / Lapsed |