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:
Disclosed herein are compounds and plant extracts, and methods for preventing or treating heart diseases, including coronary heart diseases. The compounds provided herein can be formulated into pharmaceutical compositions and medicaments that are useful in the disclosed methods. Also provided are the use of the compounds and extracts in preparing pharmaceutical formulations and medicaments.
摘要:
A process for producing a coated filter plug for a smoking article including: (a) incorporating an additive to a porous filter plug, thereby obtaining an impregnated filter plug; (b) coating a surface of the impregnated filter plug with a cross-linkable polymer material; and (c) cross-linking the cross-linkable polymer material, to form a cross-linked, breakable coating substantially enclosing the impregnated filter plug. The process may further include at least partially coating the impregnated filter plug with a cross-linking agent prior to, or subsequent to, coating with the cross-linkable polymer material.
摘要:
The present invention discloses a method and system for authentication. The method for authentication includes: acquiring the privilege security level corresponding to a client-end; inquiring the identity security level corresponding to the privilege security level according to an established relation of association between privilege security level and identity security level; determining the authentication parameters for identity authentication according to the identity security level; performing identity authentication on the client-end using the authentication parameters; and obtaining an authentication result. The identity authentication and privilege authentication are combined, and identity authentication is performed according to the identity security level in accord with the privilege security level so that rules of identity authentication can be adjusted, and the flexibility of the process of authentication may be improved.