3results about How to "Avoid insertion loss" patented technology

The invention provides a broadband gain positive slope amplitude-phase control multifunctional chip for a T / R assembly, which relates to the technical field of radio frequency integrated circuits and comprises a receiving channel, a transmitting channel, an equalization circuit, a numerical control attenuator, a numerical control phase shifter, a transmitting-receiving change-over switch module and a parallel control module. The parallel control module is used for outputting parallel control signals to the numerical control attenuator, the numerical control phase shifter and the transceiving change-over switch module; the equalization circuit is respectively connected with the receiving channel and the transmitting channel through the transmitting-receiving change-over switch module, so that a signal path of the receiving channel and a signal path of the transmitting channel multiplex the equalization circuit, the numerical control attenuator and the numerical control phase shifter; and the equalization circuit is of an on-chip integrated structure and is used for adjusting the gain of the receiving channel and the gain of the transmitting channel to present a positive slope characteristic relative to the frequency in a wide frequency band so as to compensate the frequency attenuation of an external device.

The application provides a cross-band coupling interference suppression structure, a suppression system and a suppression method. In the cross-band coupling interference suppression structure, a low-frequency antenna is fixed at a first height position above a frequency selective surface and used for transmitting a low-frequency signal; a high-frequency antenna unit is fixed at a second height position below the frequency selective surface and used for transmitting a high-frequency signal; the frequency selective surface is used for reflecting the low-frequency signal and transmitting the high-frequency signal; and a reflection layer is arranged below the low-frequency antenna unit and used for reflecting the high-frequency signal. The application sets the frequency selective surface capable of transmitting the high-frequency signal and reflecting the low-frequency signal in the cross-band structure, enhances the radiation performance of the low-frequency signal of the low-frequency band antenna by reflecting the low-frequency signal, keeps the high-frequency band antenna electromagnetically transparent, avoids introducing additional insertion loss, reduces the cross-band coupling interference, and improves the working stability of the interference suppression structure.

The invention discloses an antenna and electronic equipment, and the antenna comprises a first antenna array, a second antenna array, a single board, a radiator, and a first radio frequency connector, and the first antenna array and the second antenna array are used for transmitting and / or receiving signals. The single board is provided with one or more components for processing signals; the radiator is used for radiating the assembly; the first radio frequency connector is used for the signal connection assembly and the first antenna array; the second antenna array, the single board, the radiator and the first antenna array are stacked in the first direction; the radiator is located between the single board and the first antenna array, and the single board is located between the second antenna array and the radiator; the radiator comprises a plurality of radiating tooth sheets which are arranged in a stacked mode in the second direction or the third direction, a gap is formed between at least two adjacent radiating tooth sheets, the first radio frequency connector is contained in the gap, and the first direction, the second direction and the third direction are perpendicular to one another. According to the antenna and the electronic equipment provided by the embodiment of the invention, the networking investment cost can be reduced.