4results about How to "Improve launch performance" patented technology

This application relates to the field of antenna technology, disclosing an antenna and a communication device. The antenna includes a main board, a radiating structure, a parasitic structure, and a feeding structure. The radiating structure is disposed on the main board and includes high-frequency stubs and low-frequency stubs. The parasitic structure is disposed on the main board and includes high-frequency parasitic stubs and low-frequency parasitic stubs. The high-frequency parasitic stubs are electromagnetically coupled to each other, and the low-frequency parasitic stubs are also electromagnetically coupled to each other. The feeding structure is connected to both the high-frequency and low-frequency stubs, providing electrical signals to them. Through this method, this application enables a single antenna to support communication needs from 2G to 5G and multiple Wi-Fi frequency bands.

The invention aims to provide an efficient heat dissipation router for network communication, and relates to the technical field of communication equipment, the efficient heat dissipation router comprises a base assembly, the base assembly comprises a balancing weight and an anti-skid pad, and the balancing weight is used for keeping the router stable; the shell assembly comprises a shell, a cover plate, a dustproof plate, a mounting rod, a connecting rod, a sleeve rod and a first antenna assembly and is used for air flow entering and signal transmitting. The mainboard assembly comprises a circuit board and a supporting spring, damping protection is carried out through the supporting spring and the second antenna assembly, and the problem that a traditional router is poor in heat dissipation effect is solved.

The application relates to the technical field of optical display, and provides a vehicle-mounted HUD sunlight backflow suppression method based on a radiation refrigeration material, which comprises the following steps: acquiring a key heat generation area in a vehicle-mounted HUD affected by sunlight backflow; determining the type of the radiation refrigeration material according to the structural form of the key heat generation area; wherein the type of the radiation refrigeration material at least comprises a radiation refrigeration film or a radiation refrigeration coating; pre-treating the key heat generation area to obtain a target area to which a matching material is coated or attached; coating or attaching the radiation refrigeration material prepared in advance to the corresponding target area based on the determined form type, and blocking the heat absorption caused by the sunlight backflow through the high sunlight reflection characteristic of the radiation refrigeration material, and forming a preset radiation heat dissipation channel through the high mid-infrared emission characteristic to dissipate the heat accumulated in the target area. The application can effectively suppress the severe temperature rise problem caused by the sunlight backflow focusing in the HUD.

The utility model relates to the field of router antennas, in particular to a router antenna with a folding function. The router antenna with the folding function comprises a router body, supporting frames, main antennas and auxiliary antennas, the supporting frames are arranged on the left side and the right side of the router body respectively, the main antennas are rotationally arranged on the front sides in the supporting frames respectively, and the auxiliary antennas are hinged to the rear ends of the main antennas respectively. According to the utility model, through the design of the main antenna and the auxiliary antenna, the signal receiving and transmitting capability can be effectively enhanced, the network performance is improved, meanwhile, the unique foldable design is very practical, and the router is small in size and convenient to carry and store in a folded state; and when the antenna needs to be used, the antenna is unfolded, the signal coverage range can be expanded, the use requirements of a user in different scenes are met, and portability and signal quality are both considered.