Impedance converter to achieve negative capacitance and/or negative inductance for radio frequency front end matching
US-10790805-B2 · Sep 29, 2020 · US
Baseband processing circuitry
US9124246B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9124246-B2 |
| Application number | US-201314037116-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 25, 2013 |
| Priority date | Sep 25, 2013 |
| Publication date | Sep 1, 2015 |
| Grant date | Sep 1, 2015 |
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Abstract
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Techniques for designing baseband processing circuitry for radio IC's. In an aspect, techniques for differential-to-single-ended conversion in a baseband portion of the IC are disclosed to reduce the pin count and package size for RF IC's. In another aspect, the converter includes selectable narrowband and wideband amplifiers, wherein the wideband amplifiers may be implemented using transistor devices having smaller area than corresponding transistor devices of narrowband amplifiers. Further techniques for bypassing one or more elements, and for implementing a low-pass filter of the converter using an R-C filter network, are described.
First claim
Opening claim text (preview).
The invention claimed is: 1. An apparatus comprising: a baseband amplifier configured to convert a differential current signal into a single-ended output voltage, the baseband amplifier comprising a trans-impedance amplifier configured to generate a first differential voltage from the differential current signal, the trans-impedance amplifier having a bandwidth selectable from a first band and a second band; and an output pin coupled to the single-ended output voltage.…
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Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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- What does patent US9124246B2 cover?
- Techniques for designing baseband processing circuitry for radio IC's. In an aspect, techniques for differential-to-single-ended conversion in a baseband portion of the IC are disclosed to reduce the pin count and package size for RF IC's. In another aspect, the converter includes selectable narrowband and wideband amplifiers, wherein the wideband amplifiers may be implemented using transistor …
- Who is the assignee on this patent?
- Qualcomm Inc
- What technology area does this patent fall under?
- Primary CPC classification H03H11/0466. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Sep 01 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).