45results about How to "Reduce the impact of radiation performance" patented technology

The application provides a housing assembly, an antenna assembly and electronic equipment. The housing assembly includes a dielectric substrate and a coupling structure. The dielectric substrate has a first transmittance for preset dual-band radio frequency signals; the coupling structure is carried on the dielectric substrate and covers at least a part of the dielectric substrate, and the coupling structure includes one or more Layer coupling element array layer, the coupling element array layer has resonance characteristics under the preset dual frequency band; the housing component is in the area corresponding to the coupling structure, and the radio frequency signal of the preset dual frequency band It has a second transmittance, and the second transmittance is greater than the first transmittance.

The invention discloses an integrated electric / magnetic alternating wave absorbing device and an antenna array multi-state mutual coupling suppression method. The method achieves significant suppression of mutual coupling of the H-plane phased array in multiple working states such as non-scanning / arbitrary beam scanning / differential beams through the design of the working mode and structural parameters of the absorbing structure. Compared with the electromagnetic isolation method of the frequency selective device, the suppression method has little interference to the operating frequency, standing wave and pattern of the antenna array; The radiation efficiency and gain performance of the antenna have little influence; compared with the conventional absorbing design, which can only suppress the coupling of a specific antenna working state, the electromagnetic / magnetic alternating absorption design can effectively reduce the coupling of the antenna in various working states. The resistance-loaded elliptical metal ring structure adopted in the present invention realizes the mutual coupling suppression of the array and the maintenance of the radiation performance of the array at the same time by designing its positional relationship with the antenna electric field / current extreme value. The wave absorbing structure utilizes the electric / magnetic alternate absorption design, so that the antenna array can effectively suppress the mutual coupling under the complex working state of arbitrary beam scanning.

The application provides a housing assembly, an antenna assembly and electronic equipment. The shell assembly includes a dielectric substrate and a wave-transparent structure. The dielectric substrate has a first equivalent wave impedance for radio frequency signals in a preset frequency band, and a difference between the first equivalent wave impedance and the equivalent wave impedance of free space is a first difference. The wave-transparent structure is carried on the dielectric substrate and at least partially covers a partial area of ​​the dielectric substrate. The shell assembly has a second equivalent wave impedance for the radio frequency signal of the preset frequency band in the area corresponding to the wave transparent structure, and the difference between the second equivalent wave impedance and the wave impedance of free space The difference is a second difference, wherein the second difference is smaller than the first difference. When the housing assembly is applied to electronic equipment, the impact of the housing assembly on the radiation performance of the antenna module disposed inside the electronic equipment can be reduced, thereby improving the communication performance of the electronic equipment.

The invention provides a micro dual-circular-polarization antenna based on high low frequency multiplexing and aims to solve a technical problem of relatively large volume of a U / S wave band dual-circular-polarization antenna in the prior art. The micro dual-circular-polarization antenna comprises a thin metal plate, a first medium plate, 2*2 high frequency radiators, a bottom plate, four parasitic branches, a director and second and third medium plates, wherein each high frequency radiator comprises a high frequency radiation unit, a medium sleeve and a reflection plate, the first medium plate and the 2*2 high frequency radiators are fixed on the upper surface of the thin metal plate, the bottom plate is arranged below the thin metal plate through a supporting device, the second medium plate and the four 90-DEG rotary symmetrical gamma-shaped parasitic branches are fixed on the upper surface of the bottom plate, the third medium plate is fixed on the lower surface of the bottom plate, and the director is fixed at a top end of the gamma-shaped parasitic branches through an insulation supporting column. The micro dual-circular-polarization antenna is advantaged in that the volume is small, dual-circular-polarization characteristics can be realized, and the micro dual-circular-polarization antenna can be applied to signal reception and transmission of satellite communication shipborne systems.

The present application provides a housing assembly, an antenna assembly, and an electronic device. The housing assembly includes a dielectric substrate and a wave-transmitting structure. The dielectric substrate has a first transmittance to the radio frequency signal of the preset frequency band; the wave-transparent structure includes first and second wave-transparent layers coupled to each other, the first and second wave-transparent layers are stacked on the dielectric substrate at intervals, and the wave-transparent structure Covering at least a partial area of ​​the dielectric substrate; the shell assembly has a second transmittance for radio frequency signals of a preset frequency band in the area corresponding to the wave-transparent structure, and the second transmittance is greater than the first transmittance. The shell assembly provided by the present application carries the wave-transparent structure on the dielectric substrate, and through the interaction between the first wave-transparent layer and the second wave-transparent layer in the wave-transparent structure, the transmittance of radio frequency signals in the preset frequency band is improved. , when the housing assembly is applied to electronic equipment, the impact of the housing assembly on the radiation performance of the antenna module disposed inside the housing assembly can be reduced, thereby improving the communication performance of the electronic equipment.

The application provides an antenna device and electronic equipment. The antenna device includes an antenna module and a radome. The antenna module is used for sending and receiving radio frequency signals of a preset frequency range in a preset direction range. The radome and the antenna module are spaced apart, and the radome is located within a preset direction range. The radome includes a substrate and a resonant structure carried on the substrate. The substrate is used to pass the radio frequency signal of the first frequency band in the preset frequency band, and the resonant structure is used to adjust the passband width of the substrate for the radio frequency signal of the preset frequency band, so that the radome can pass the second frequency band of the preset frequency band radio frequency signals, wherein the bandwidth of the second frequency band is greater than the bandwidth of the first frequency band, and the radio frequency signal of the second frequency band includes the radio frequency signal of the first frequency band. The antenna device provided by the present application has relatively large bandwidth, and the communication performance of electronic equipment using the antenna device is relatively good.