Product such as a tire with RFID tag with rubber, elastomer, or polymer antenna
US-10150267-B2 · Dec 11, 2018 · US
Mobile wireless communications device with reduced harmonics resulting from metal shield coupling
US8965308B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8965308-B2 |
| Application number | US-201314093788-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 2, 2013 |
| Priority date | May 8, 2008 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A mobile wireless communications device includes a housing, antenna, and circuit board carried by the housing and having radio frequency (RF) circuitry operative with the antenna for receiving and transmitting RF signals through the antenna. A power amplifier is connected within a transmission line for amplifying RF signals to be transmitted over the transmission line to the antenna. An antenna switch is connected to the antenna and RF circuitry. An RF shield surrounds the power amplifier and antenna switch and isolates the power amplifier and antenna switch from the antenna and RF circuitry. A low pass filter is connected to the power amplifier and antenna switch for reducing any RF coupling of voltage standing waves of upper harmonic frequencies from the power amplifier into the antenna switch through the RF shield while maintaining transmission of signals through the transmission line at a desired fundamental frequency.
First claim
Opening claim text (preview).
That which claimed is: 1. An electronic device comprising: an antenna switch; a power amplifier; a transmission path coupling said power amplifier and said antenna switch; and an RF shield surrounding said power amplifier, said antenna switch, and said transmission path; said transmission path comprising a transmission line, an inductor coupled in series with said transmission line, and at least one component coupled to said inductor to define therewith a low pass fil…
Assignees
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Classifications
- H01Q1/2241Primary
Electricity · mapped topic
- H04B1/0475Primary
Electricity · mapped topic
Cross-Sectional Technologies · mapped topic
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Frequently asked questions
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- What does patent US8965308B2 cover?
- A mobile wireless communications device includes a housing, antenna, and circuit board carried by the housing and having radio frequency (RF) circuitry operative with the antenna for receiving and transmitting RF signals through the antenna. A power amplifier is connected within a transmission line for amplifying RF signals to be transmitted over the transmission line to the antenna. An antenna…
- Who is the assignee on this patent?
- Blackberry Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01Q1/2241. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 24 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).