Stylus antenna
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 17, 2001
Grant Date -
N/A
app pub date -
Jun 27, 2000
filing date -
Jun 27, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention discloses antenna structures for portable digital devices that continuously receive radio signals in both the extended and the retracted antenna positions. In addition, the disclosed antenna structures tune the antenna based on the position of the antenna to achieve good impedance matching, which is particularly useful in reducing the noise and interference, while maximizing the available power for radiation from the portable digital devices. More specifically, a multiple position stylus antenna is disclosed that incorporates an antenna into a stylus for use with a Personal Digital Assistant (PDA). The stylus antenna uses one radiating element tuned for optimal performance in the extended position and synthesizes a compensation impedance to match the impedance of the feeding transmission line in the retracted position.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully