摘要:
An internal antenna system (200) for reducing interference in a wireless communication device (100) is provided. The internal antenna system (200) comprises an antenna (202) and a housing (110). The housing is configured to reduce interference in the transmission caused by the metal surface of the housing. The housing is made of or plated with an electromagnetically transparent decorative metal (ETDM). The housing has metal islands, which are separated from each other by gaps. These gaps in the ETDM surface allow the radio frequency (RF) energy of signals transmitted by the antenna to pass through.
摘要:
A wireless device (100) includes a first circuit board (102), a second circuit board (104), and a distributed load (106) having an inductive coupling (112) and a capacitive coupling (114). The inductive coupling (112) and the capacitive coupling (114) form a parallel resonance at predefined frequencies of interest. The second circuit board (104) includes an antenna (116) for receiving and transmitting radio waves.
摘要:
A portable communication device (100) for reception of communication signals and a method (500) for tuning an antenna assembly (132) of the portable communication device (100) are provided. The antenna assembly (132) includes an antenna element (136) and a speaker assembly (124) with a metal element. The antenna element (136) is coupleable to the metal element of the speaker assembly (132) to provide increased metallization for generation of an antenna length for reception of desired communication signals. The method (500) for tuning the antenna assembly includes coupling (508) the antenna element (136) to the metal element of the speaker assembly (124), thereby providing the increased metallization to tune the antenna length of the antenna assembly (132) for reception of the communication signals within a predetermined frequency range.
摘要:
An internal antenna system (200) for reducing interference in a wireless communication device (100) is provided. The internal antenna system (200) comprises an antenna (202) and a housing (110). The housing is configured to reduce interference in the transmission caused by the metal surface of the housing. The housing is made of or plated with an electromagnetically transparent decorative metal (ETDM). The housing has metal islands, which are separated from each other by gaps. These gaps in the ETDM surface allow the radio frequency (RF) energy of signals transmitted by the antenna to pass through.
摘要:
A wireless device (100) includes a first circuit board (102), a second circuit board (104), and a distributed load (106) having an inductive coupling (112) and a capacitive coupling (114). The inductive coupling (112) and the capacitive coupling (114) form a parallel resonance at predefined frequencies of interest. The second circuit board (104) includes an antenna (116) for receiving and transmitting radio waves.
摘要:
A device including a battery, a wireless transceiver, and a battery cover. The battery cover is adapted to retain the battery in a desired position. The battery cover is further adapted to act as a first antenna in communication with the wireless transceiver for sending and receiving signals in a first frequency band.
摘要:
A communication device (100) is described herein. The device can include a first substrate (135) that can contribute to an electrical length of the communication device, a second substrate (140) that can contribute to the electrical length of the communication device and an inductive flexible circuit (145) that can be coupled to the first substrate and the second substrate. The inductive flexible circuit can transfer signals between the first and second substrates and can lengthen a first portion of the electrical length (EL1) of the communication device to a fractional wavelength of interest.
摘要:
An antenna system (102) for receiving and transmitting radio frequency (RF) signals within a plurality of predetermined RF bands includes a ground leg (202), a feed leg (206), one or more capacitive patches (212) and one or more switching devices (214). The feed leg (206) is coupled to the ground leg (202) at one portion thereof. Each of the one or more switching devices (214) is associated with one capacitive patch (212) and selectably couples its associated capacitive patch (212) to a ground plane (204) in order to receive and transmit RF signals within an associated predetermined RF band.
摘要:
An antenna system for reception and transmission of radio frequency (RF) signals and a method for tuning the antenna system are provided. The antenna system includes a ground plane, a first element and a second element. The first element includes a driven unbalanced antenna element that resonates within at least one predetermined first frequency band to transmit and receive radio frequency (RF) signals modulated at one or more frequencies within the at least one predetermined first frequency band. The second element is non-resonating within the at least one predetermined first frequency band and is located within an antenna volume of the first element to create a partial loop response within the antenna volume of the first element by capacitively coupling to the first element when connected to the ground plane.
摘要:
A hand-held communication device (100), such as a cellular telephone or a personal digital assistant (PDA), comprises a sensor assembly (200) and an auxiliary input interface (300). Auxiliary input interface (300) is situated along one or more exterior surfaces (110) of device (100) and is electrically coupled to processing circuitry within device (100). Sensor assembly (200) is removably attached to the one or more exterior surfaces (110) of device (100). Sensor assembly (200) preferably includes multiple pressure sensors for receiving tactile inputs from a user, and multiple outputs for coupling to auxiliary input interface (300). Sensor assembly (200) provides signals at the multiple outputs in response to tactile inputs from the user. In one form, during an assignment procedure, tactile inputs from the user are assigned to predefined functions of the device and/or one or more software applications installed in the device. Subsequently, during normal operation of the device (100), each of the specific tactile input results in the execution of one or more predefined functions. Sensor assembly (200) is preferably realized by a combination that includes an elastomeric connector (210) and a top portion having a flexible shroud (250) and multiple conductive strips (270, 272, . . . , 284) that are configured for contacting conductive regions (220, 222, . . . , 232) of elastomeric connector (210).