Patent US5265267A successfully refreshed from Google Patents.
US5265267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integrated circuit including a surface acoustic wave transformer and a balanced mixer
Assignee: Motorola Solutions Inc
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Filing: 1991-08-29
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Granted: 1993-11-23
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Expires: 2011-08-29
Abstract
Abstract In a radio transceiver (100), an IF stage (110) is formed on a single substrate. A balanced or image rejection mixer (204) having two pairs of inputs and a pair of outputs is integrated on an IC substrate (202). Disposed on the IC substrate are SAW transformers (210, 212 and 214) which provide a desired phase transformation. The SAW transformers comprise piezoelectric layers (228) and metallization layers (230) which are suitably patterned to provide the desired phase transformation and frequency selectivity.
Inventors
- 👤 William J. Martin
- 👤 David Penunuri
- 👤 Jose I. Suarez
- 👤 Frederick Y. Cho
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:25
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/26; H03; H03D; H03D7/00; H03D7/14; H03D7/1425; H03D7/1441; H03D7/1458; H03D7/1483; H03D7/16; H03D7/165; H03H; H03H9/00; H03H9/0023; H03H9/0028; H03H9/0033; H03H9/0038; H03H9/02; H03H9/05; H03H9/0538; H03H9/0542; H03D2200/00; H03D2200/0001; H03D2200/0007
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
80 words
An integrated circuit formed on a single IC substrate, comprising: a mixer integrated within said IC substrate having at least one pair of inputs and a pair of outputs; and at least one surface acoustic wave transformer disposed on said IC substrate for providing a phase transformation, said acoustic wave transformer being coupled to one of the pair of inputs or the pair of outputs, wherein said surface acoustic wave transformer provides frequency filtering as well as said phase transformation.
Claim 2
Dependent Claim
80 words
An integrated circuit formed on a single IC substrate, comprising: a mixer integrated within said IC substrate having at least one pair of inputs and a pair of outputs; and at least one surface acoustic wave transformer disposed on said IC substrate for providing a phase transformation, said acoustic wave transformer being coupled to one of the pair of inputs or the pair of outputs, wherein said surface acoustic wave transformer provides frequency filtering as well as said phase transformation.
Claim 3
Dependent Claim
45 words
The circuit of claim 1, wherein said surface acoustic wave transformer comprises a metallization layer and a piezoelectric layer, said metallization layer being suitably patterned on at least one major surface of said piezoelectric layer to provide the desired phase transformation and said frequency filtering.
Claim 4
Dependent Claim
25 words
The circuit of claim 2, wherein said metallization layer is disposed on said IC substrate and said piezoelectric layer is positioned over said metallization layer.
Claim 5
Dependent Claim
12 words
The circuit of claim 1, wherein said mixer comprises a balanced mixer.
Claim 6
Dependent Claim
13 words
The circuit of claim 1, wherein said mixer comprises an image rejection mixer.
Claim 7
Dependent Claim
65 words
An integrated circuit formed on a single piezoelectric substrate, comprising: a mixer integrated on an IC die positioned on said piezoelectric substrate having at least one pair of inputs and a pair of outputs; and at least one surface acoustic wave transformer formed on said piezoelectric substrate, said acoustic wave transformer being coupled to one of the pair of inputs or the pair of outputs.
Claim 8
Dependent Claim
65 words
An integrated circuit formed on a single piezoelectric substrate, comprising: a mixer integrated on an IC die positioned on said piezoelectric substrate having at least one pair of inputs and a pair of outputs; and at least one surface acoustic wave transformer formed on said piezoelectric substrate, said acoustic wave transformer being coupled to one of the pair of inputs or the pair of outputs.
Claim 9
Dependent Claim
32 words
The circuit of claim 6, wherein said surface acoustic wave transformer comprises a metallization layer disposed on said piezoelectric substrate, said metallization layer being suitably patterned to provide a desired phase transformation.
Claim 10
Dependent Claim
21 words
The circuit of claim 7, wherein said metallization layer is patterned to provide frequency filtering as well as said phase transformation.
Claim 11
Dependent Claim
12 words
The circuit of claim 6, wherein said mixer comprises a balanced mixer.
Claim 12
Dependent Claim
13 words
The circuit of claim 6, wherein said mixer comprises an image rejection mixer.
Claim 13
Dependent Claim
83 words
An integrated circuit structure comprising; an IC substrate; a mixer integrated within the IC substrate having at least one pair of inputs and a pair of outputs; a metallization layer disposed on said IC substrate; and a layer of piezoelectric material positioned over said metallization layer, said metallization layer being suitably patterned to provide a surface acoustic wave transformer for providing a desired phase transformation, said acoustic wave transformer being coupled to one of the pair of inputs or the pair of outputs.
Claim 14
Dependent Claim
83 words
An integrated circuit structure comprising; an IC substrate; a mixer integrated within the IC substrate having at least one pair of inputs and a pair of outputs; a metallization layer disposed on said IC substrate; and a layer of piezoelectric material positioned over said metallization layer, said metallization layer being suitably patterned to provide a surface acoustic wave transformer for providing a desired phase transformation, said acoustic wave transformer being coupled to one of the pair of inputs or the pair of outputs.
Claim 15
Dependent Claim
20 words
The circuit of claim 11, wherein said surface acoustic wave transformer provides frequency filtering as well as said phase transformation.
Claim 16
Dependent Claim
12 words
The circuit of claim 11, wherein said mixer comprises a balanced mixer.
Claim 17
Dependent Claim
13 words
The circuit of claim 11, wherein said mixer comprises an image rejection mixer.
Claim 18
Dependent Claim
104 words
In a radio receiver having an IF stage disposed on a single IC substrate, said IF stage comprising: a mixer integrated on said IC substrate having at least one pair of inputs and a pair of outputs; and at least one surface acoustic wave transformer disposed on said IC substrate, said acoustic wave transformer being coupled to one of the pair of inputs or the pair of outputs, wherein said surface acoustic wave transformer comprises a metallization layer and a piezoelectric layer, said metallization layer being suitably patterned on at least one major surface of said piezoelectric layer to provide a desired phase transformation.
Claim 19
Dependent Claim
104 words
In a radio receiver having an IF stage disposed on a single IC substrate, said IF stage comprising: a mixer integrated on said IC substrate having at least one pair of inputs and a pair of outputs; and at least one surface acoustic wave transformer disposed on said IC substrate, said acoustic wave transformer being coupled to one of the pair of inputs or the pair of outputs, wherein said surface acoustic wave transformer comprises a metallization layer and a piezoelectric layer, said metallization layer being suitably patterned on at least one major surface of said piezoelectric layer to provide a desired phase transformation.
Claim 20
Dependent Claim
21 words
The radio of claim 15, wherein said metallization layer is patterned to provide frequency filtering as well as said phase transformation.
Claim 21
Dependent Claim
15 words
The radio of claim 15, wherein said metallization layer is disposed on said IC substrate.
Claim 22
Dependent Claim
12 words
The radio of claim 15, wherein said mixer comprises a balanced mixer.
Claim 23
Dependent Claim
13 words
The radio of claim 15, wherein said mixer comprises an image rejection mixer.
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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) | 1996-11-22 | 1997-05-24 | 1997-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-11-22 | 2001-05-24 | 2001-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-11-22 | 2005-05-24 | 2005-11-23 | $7700.00 | Window Closed / Lapsed |