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Duplexer/multiplexer having filters that include at least one band reject filter

A technology of band-stop filter and filter, which is applied in the direction of impedance network, electrical components, transmission system, etc.

Inactive Publication Date: 2011-08-24
APPLE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, such filters may not survive for the ideal length of time at the ideal power levels and frequencies that may be required in a particular type of wireless network

Method used

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  • Duplexer/multiplexer having filters that include at least one band reject filter
  • Duplexer/multiplexer having filters that include at least one band reject filter
  • Duplexer/multiplexer having filters that include at least one band reject filter

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Embodiment Construction

[0029] In the following description, numerous details are set forth to provide an understanding of some embodiments. It will be understood, however, by those skilled in the art that some embodiments may be practiced without these details and that various variations or modifications of the described embodiments may be made.

[0030] According to some embodiments, there is provided a multi-port routing architecture for use in a wireless communication device having an antenna port connected to an antenna of the wireless communication device, and a plurality of ports connected to corresponding receive and transmit paths of the wireless communication device . Examples of wireless communication devices include wireless terminals (mobile stations), wireless base stations, and other devices capable of performing wireless communication.

[0031] The multiport routing structure can be a duplexer or a multiplexer. In general, a multi-port routing architecture includes circuitry to sele...

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PUM

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Abstract

A wireless communications device includes an antenna, a multi-port path selection structure having an antenna port connected to the antenna, and plural ports connected to respective one or more receive and transmit paths of the wireless communications device. The multi-port path selection structure has a transmit band reject filter connected to the transmit path and a second filter connected to the receive path.

Description

technical field [0001] The present invention generally relates to a duplexer / multiplexer having a filter comprising at least one band reject filter. Background technique [0002] A wireless communication device, such as a wireless terminal or a wireless base station, includes a wireless transceiver that performs wireless communication, such as radio frequency (RF) communication. Wireless communication devices may include duplexers (or multiplexers) that allow simultaneous transmission and reception in different frequency bands using the same antenna, while ensuring that the relatively high power transmit signal sent by the wireless transceiver does not overwhelm the signal received by the wireless transceiver. Relatively low power received signal. [0003] A duplexer has an antenna port (for connecting to an antenna), a receive port (for receiving signals from the antenna port), and a transmit port (for sending signals to the antenna port). A multiplexer has an antenna por...

Claims

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Application Information

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IPC IPC(8): H04B1/04H04W88/02H04W88/08H03H9/46
CPCH04B1/0057
Inventor C.简E.加农L.胡
Owner APPLE INC