Patent US4540954A successfully refreshed from Google Patents.
US4540954A
Expired / Lapsed
US
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Singly terminated distributed amplifier
Assignee: Boeing North American Inc
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Filing: 1982-11-24
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Granted: 1985-09-10
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Expires: 2002-11-24
Abstract
Abstract A broadband distributed amplifier capable of amplifying frequencies from zero to 20 Gigahertz is disclosed having a singly terminated output. The singly terminated construction of the amplifier precludes the need for a termination resistor on the output and thereby enables substantially all of the output power to be utilized.
Inventors
- 👤 Thomas R. Apel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:39
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/60; H03F3/605; H03F3/607; H10; H10W; H10W90/00; H10W90/701; H10W90/751; H10W90/753
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
95 words
An integrated circuit comprising: a. a plurality of amplifying means for amplifying an input signal and mounted on a semiconductor substrate; and b. means for interconnection of said amplifying means, each to the others, to form an amplification stage, said means for interconnection having a dissimilar susceptance and reactance for each connection from the susceptance and reactance of the other connection means, the dissimilarity a function of the total number of amplifying means in said stage and resulting in substantially all of the output of said amplifying means being provided to a singly terminated output.
Claim 2
Dependent Claim
95 words
An integrated circuit comprising: a. a plurality of amplifying means for amplifying an input signal and mounted on a semiconductor substrate; and b. means for interconnection of said amplifying means, each to the others, to form an amplification stage, said means for interconnection having a dissimilar susceptance and reactance for each connection from the susceptance and reactance of the other connection means, the dissimilarity a function of the total number of amplifying means in said stage and resulting in substantially all of the output of said amplifying means being provided to a singly terminated output.
Claim 3
Dependent Claim
19 words
An integrated circuit as in claim 1 wherein said input signal has a frequency from 0 to 20 Gigahertz.
Claim 4
Dependent Claim
16 words
An integrated circuit as in claim 1 wherein said means for interconnection comprises metal oxide capacitors.
Claim 5
Dependent Claim
15 words
An integrated circuit as in claim 1 wherein said means for interconnection comprises wire bonding.
Claim 6
Dependent Claim
15 words
An integrated circuit as in claim 1 wherein said means for interconnection comprises photolithographic metalization.
Claim 7
Dependent Claim
17 words
An integrated circuit as in claim 1 wherein said means for amplifying comprises N-channel field effect transistors.
Claim 8
Dependent Claim
65 words
A distributed amplifier having a singly terminated output comprising: a. an integrated circuit substrate; b. a plurality of active amplifier devices mounted on said substrate with electrical interconnection, each to the others, to form a distributed amplifier; and c. said electrical interconnection having a reactance difference between said active devices resulting in substantially all of the amplifier power being output to said singly terminated output.
Claim 9
Dependent Claim
65 words
A distributed amplifier having a singly terminated output comprising: a. an integrated circuit substrate; b. a plurality of active amplifier devices mounted on said substrate with electrical interconnection, each to the others, to form a distributed amplifier; and c. said electrical interconnection having a reactance difference between said active devices resulting in substantially all of the amplifier power being output to said singly terminated output.
Claim 10
Dependent Claim
116 words
A traveling wave amplifier comprising: a. a plurality of amplifying devices on a single substrate, each of said devices interconnected with the others in a phase shifting parallel configuration and to a singly terminated output; and b. a phase difference in said interconnections, each from the others, such that substantially all of the power from said devices is output to said singly terminated output, said phase difference having a capacitive susceptance increasing toward the output as a direct function of the number of amplifying devices, from one device to the next, and also having inductive reactance decreasing toward the output as a direct function of the number of amplifying devices, from one device to the next.
Claim 11
Dependent Claim
116 words
A traveling wave amplifier comprising: a. a plurality of amplifying devices on a single substrate, each of said devices interconnected with the others in a phase shifting parallel configuration and to a singly terminated output; and b. a phase difference in said interconnections, each from the others, such that substantially all of the power from said devices is output to said singly terminated output, said phase difference having a capacitive susceptance increasing toward the output as a direct function of the number of amplifying devices, from one device to the next, and also having inductive reactance decreasing toward the output as a direct function of the number of amplifying devices, from one device to the next.
Claim 12
Dependent Claim
13 words
An amplifier as in claim 8 wherein said interconnections comprise metal oxide capacitors.
Claim 13
Dependent Claim
12 words
An amplifier as in claim 8 wherein said interconnections comprise wire bonding.
Claim 14
Dependent Claim
12 words
An amp1ifier as in claim 8 wherein said interconnections comprise photolithographic metalization.
Claim 15
Dependent Claim
15 words
An amplifier as in claim 8 wherein said amplifying devices comprise N-channel field effect transistors.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-09-09 | 1989-03-11 | 1989-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-09 | 1993-03-11 | 1993-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-09 | 1997-03-11 | 1997-09-10 | $7700.00 | Window Closed / Lapsed |