摘要:
A wide-band balun device includes a first metallization deposited over a substrate and oriented in a first coil. The first coil extends horizontally across the substrate while maintaining a substantially flat vertical profile. A second metallization is deposited over the substrate and oriented in a second coil. The second coil is magnetically coupled to the first coil and a portion of the second coil oriented interiorly of the first coil. A third metallization is deposited over the substrate and oriented in a third coil. The third coil is magnetically coupled to the first and second coils. A first portion of the third coil is oriented interiorly of the second coil. The third coil has a balanced port connected to the third coil between second and third portions of the third coil.
摘要:
A method for vertically grounding and leading down form an inner side of a composite pole tower and pole tower thereof, wherein the method includes the following steps: extending an upper metal cross arm from an extended line of at least one side of a ground wire cross arm which is made of metal, vertically leading down a ground down-leading wire from a distal end of the upper metal cross arm, connecting the ground down-leading wire to the pole tower via a lower metal cross arm at a distance under a lower lead, and grounding the ground down-leading wire along a tower body of the pole tower, wherein when an lower portion of the tower body is a metal pipe, the ground down-leading wire is selectively directly connected to the metal pipe via the lower metal cross arm. The upper metal cross arm and the lower cross arm are able to provide a distance between the ground down-leading wire and the pole tower. The method enhances the ability of bearing lightning flashover, increases the insulating intensity to lightning impact, and prevents burning to composite insulator by power-flow current after lightning flash over. And also the method is easy and simple for application.
摘要:
A method for vertically grounding and leading down form an outer side of a composite pole tower and pole tower thereof, wherein the method includes the following steps: extending an upper metal cross arm from an extended line of at least one side of a ground wire cross arm, vertically leading down a ground down-leading wire from a distal end of the upper metal cross arm, connecting the ground down-leading wire to the pole tower via a lower metal cross arm at a distance under a lower lead, and grounding the ground down-leading wire along a tower body of the pole tower, wherein when an lower portion of the tower body is a metal pipe, the ground down-leading wire is selectively directly connected to the metal pipe via the lower metal cross arm. The method facilitates in compressing the width of the transmission corridor to a maximum extent as well as designing a lightning protection, preventing the ground down-leading wire from short-circuiting with the tower body, and realizing the insulation function of the composite material tower body. The manner of using unilateral ground down-leading wire saves material, and is economical and simple in structure.
摘要:
Methods and systems to configure and/or reconfigure measurement configuration in wireless communications with one or more cells are disclosed. Measurement configuration reporting may be reconfigured based on events associated with the one or more serving cells and/or one or more serving component carriers, among others. Measurement configuration and measurement configuration reporting may also be reconfigured based on events associated with one or more serving component carriers.
摘要:
This invention discloses a power device package for containing, protecting and providing electrical contacts for a power transistor. The power device package includes a top and bottom lead frames for directly no-bump attaching to the power transistor. The power transistor is attached to the bottom lead frame as a flip-chip with a source contact and a gate contact directly no-bumping attaching to the bottom lead frame. The power transistor has a bottom drain contact attaching to the top lead frame. The top lead frame further includes an extension for providing a bottom drain electrode substantially on a same side with the bottom lead frame. In a preferred embodiment, the power device package further includes a joint layer between device metal of source, gate or drain and top or bottom lead frame, through applying ultrasonic energy. In another embodiment, a layer of conductive epoxy or adhesive, a solder paste, a carbon paste, or other types of attachment agents for direct no-bumping attaching the power transistor to one of the top and bottom lead frames.
摘要:
A power semiconductor device package includes a conductive assembly including a connecting structure and a semiconductor die having an aperture formed therethrough, the aperture being sized and configured to spacedly receive the connecting structure. In an alternative embodiment, a power semiconductor device package includes a conductive assembly including a connecting structure and a pair of semiconductor die disposed on either side of the connecting structure in spaced relationship thereto.
摘要:
A method for making a carbon nanotube structure is introduced. The method includes the following steps. A carbon nanotube precursor including a number of carbon nanotubes is provided. The carbon nanotube precursor is placed in a chamber with low oxygen environment. The carbon nanotube precursor is heated in the chamber.
摘要:
The disclosure discloses a method for communication based on pseudo-contact information, which including: when a call is received, acquiring contact information of a calling party, and encrypting the contact information by using a preset encryption algorithm to acquire pseudo-contact information; when the pseudo-contact information does not match locally stored pseudo-contact information, displaying real contact information of the calling party, wherein the locally stored pseudo-contact information represents the pseudo-contact information generated by encrypting the contact information to be stored according to the preset encryption algorithm and locally stored; and when the pseudo-contact information matches the locally stored pseudo-contact information, displaying a substituted contact information generated by substituting a plurality of bits of the real contact information of the calling party with an identifier. The disclosure further discloses another method for communication based on pseudo-contact information and an apparatus for communication based on pseudo-contact information. The disclosure can solve the problems of higher operation complexity and lower safety performance of the method for protecting contact information stored on a terminal mentioned in the related art.
摘要:
A semiconductor device has a substrate and RF FEM formed over the substrate. The RF FEM includes an LC low-pass filter having an input coupled for receiving a transmit signal. A Tx/Rx switch has a first terminal coupled to an output of the LC filter. A diplexer has a first terminal coupled to a second terminal of the Tx/Rx switch and a second terminal for providing an RF signal. An IPD band-pass filter has an input coupled to a third terminal of the Tx/Rx switch and an output providing a receive signal. The LC filter includes conductive traces wound to exhibit inductive and mutual inductive properties and capacitors coupled to the conductive traces. The IPD filter includes conductive traces wound to exhibit inductive and mutual inductive properties and capacitors coupled to the conductive traces. The RF FEM substrate can be stacked over a semiconductor package containing an RF transceiver.
摘要:
Rather than have a unique code set per TV product, a common code base is provided to service multiple products and even multiple product lines. Embedded systems can be upgraded through a network connection. The software architecture provides a flexible approach to supporting multiple product offerings through a plug-in modular middle-ware and to providing standardized hardware acceleration for both 2D and 3D graphics. The plug-in capability provides for feature additions and upgrades after sale.