Patent US6801114B2 successfully refreshed from Google Patents.
US6801114B2
Expired / Lapsed
US
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Integrated radio having on-chip transformer balun
Assignee: Avago Technologies International Sales Pte Ltd
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Filing: 2002-01-23
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Granted: 2004-10-05
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Expires: 2022-01-23
Abstract
Abstract A transformer balun is obtained that is symmetrical in structure, provides high current, or high voltage, amplification and has high coupling coefficients while maintaining minimal overall size. The balun structure includes primary and secondary metal windings at separate layer interfaces. The primary and secondary metal windings are symmetrical and can have any number of turns, which is only limited by integrated circuit area and capacitance. Accordingly, the primary and secondary windings may be on as many layers as needed. Further, the primary and/or secondary may include a center tap ground, which enables the winding to be used as a differential port.
Inventors
- 👤 Hung Yu Yang
- 👤 Jesse A Castaneda
- 👤 Reza Rofougaran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:13
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/42; H01; H01F; H01F17/00; H01F17/0006; H01F17/0013; H10; H10W; H10W20/00; H10W20/40; H10W20/497; H10W44/00; H10W44/501; H01F19/00; H01F19/04; H01F21/00; H01F21/12; H01F2021/125; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49117; Y10T29/49124; Y10T29/4913; Y10T29/49133; Y10T29/49135
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
139 words
An integrated radio comprises: receiver section operably coupled to convert an inbound radio frequency (RF) signal into an inbound intermediate frequency signal; transmitter section operably coupled to convert an outbound intermediate frequency signal into an outbound radio frequency signal (RF); and transformer balun operably coupled to receive the inbound RF signal from an antenna and to provide the outbound RF signal to the antenna, wherein the transformer balun includes: primary winding having at least one primary turn, wherein the at least one primary turn is substantially symmetrical, and wherein the primary winding is on at least one dielectric layer; and secondary winding having at least one secondary turn, wherein the at least one secondary turn is substantially symmetrical, and wherein the secondary winding is on at least one other dielectric layer and is magnetically coupled to the primary winding.
Claim 2
Dependent Claim
139 words
An integrated radio comprises: receiver section operably coupled to convert an inbound radio frequency (RF) signal into an inbound intermediate frequency signal; transmitter section operably coupled to convert an outbound intermediate frequency signal into an outbound radio frequency signal (RF); and transformer balun operably coupled to receive the inbound RF signal from an antenna and to provide the outbound RF signal to the antenna, wherein the transformer balun includes: primary winding having at least one primary turn, wherein the at least one primary turn is substantially symmetrical, and wherein the primary winding is on at least one dielectric layer; and secondary winding having at least one secondary turn, wherein the at least one secondary turn is substantially symmetrical, and wherein the secondary winding is on at least one other dielectric layer and is magnetically coupled to the primary winding.
Claim 3
Dependent Claim
67 words
The integrated radio of claim 1 , wherein the at least one primary turn further comprises: a plurality of turns on a first one of the at least one dielectric layer; and a plurality of metal bridges on a second one of the at least one dielectric layer, wherein the plurality of metal bridges are operably connected to the plurality of turns to provide the primary winding.
Claim 4
Dependent Claim
69 words
The integrated radio of claim 1 , wherein the at least one secondary turn further comprises: a plurality of turns on a first one of the at least one other dielectric layer; and a plurality of metal bridges on a second one of the at least one other dielectric layer, wherein the plurality of metal bridges are operably connected to the plurality of turns to provide the secondary winding.
Claim 5
Dependent Claim
35 words
The integrated radio of claim 1 further comprises: the primary winding including an interwoven spiral-type primary inductor; and the secondary winding including an interwoven spiral-type secondary inductor that is substantially symmetrical to the primary winding.
Claim 6
Dependent Claim
33 words
The integrated radio of claim 4 further comprises: the interwoven spiral-type primary inductor including a first number of multiple turns; and the interwoven spiral-type secondary inductor including a second number of multiple turns.
Claim 7
Dependent Claim
32 words
The integrated radio of claim 1 , wherein the secondary winding further comprises: a center tap operably connected to ground to provide a differential signal at end ports of the secondary winding.
Claim 8
Dependent Claim
95 words
The integrated radio of claim 1 , wherein the at least one primary turn further comprises: at least one turn on a first one of the at least one dielectric layer; at least one other turn on a second one of the at least one dielectric layer; and a plurality of vias operably connecting the at least one turn on the first one of the at least one dielectric layer in parallel to the at least one other turn on the second one of the at least one dielectric layer to provide the primary winding.
Claim 9
Dependent Claim
99 words
The integrated radio of claim 1 , wherein the at least one secondary turn further comprises: at least one turn on a first one of the at least one other dielectric layer; at least one other turn on a second one of the at least one other dielectric layer; and a plurality of vias operably connecting the at least one turn on the first one of the at least one other dielectric layer in parallel to the at least one other turn on the second one of the at least one other dielectric layer to provide the secondary winding.
Claim 10
Dependent Claim
55 words
The integrated radio of claim 1 further comprises: a substrate, wherein the at least one dielectric layer of the primary winding is on the substrate, wherein the at least one other dielectric layer of the secondary winding is on the substrate such that the primary winding is magnetically and capacitively coupled to the secondary winding.
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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) | 2007-10-05 | 2008-04-05 | 2008-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-10-05 | 2012-04-05 | 2012-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-10-05 | 2016-04-05 | 2016-10-05 | $7700.00 | Window Closed / Lapsed |