2results about How to "Increased Gain Bandwidth" patented technology

The application relates to the technical field of wireless communication, and discloses a novel wide-band ceramic antenna. The novel wide-band ceramic antenna comprises first, second and third ceramic antennas of the same size stacked together from top to bottom; the first and third ceramic antennas are provided with transmitting / receiving end electrodes and feeding electrodes; the first, second and third ceramic antennas are provided with transverse electrodes and longitudinal electrodes, and the transverse electrodes and the longitudinal electrodes are provided with metal through holes. The first, second and third ceramic antennas are stacked to reduce the antenna volume and the installation difficulty; the first and third ceramic antennas are respectively provided with transmitting / receiving end electrodes and feeding electrodes, a plurality of transmitting / receiving end electrodes and feeding electrodes are arranged, the antenna bandwidth is effectively enhanced, and the radio frequency performance and the frequency band coverage range are enhanced. The metal through holes are arranged on the antenna electrodes, the distributed inductance is increased, the antenna standing wave bandwidth and the gain bandwidth are strengthened, and the increase of the antenna frequency band coverage range is realized. The application further discloses a wireless temperature and humidity sensor.

The application provides a transformer coupling type wideband low-noise amplifier, which comprises an input matching circuit, an amplification circuit, an output wideband circuit, an input negative feedback circuit and an output protection circuit. The amplifier realizes the effects of expanding bandwidth, optimizing linearity and stability through the input negative feedback circuit, realizes input bandwidth expansion without additional noise through input matching, controls and improves the gain bandwidth of the output pole of the radio frequency signal through the inductance in the output wideband circuit, and realizes feedback optimization gain by combining the inductive coupling of the gate and the drain level of the amplifier transistor. On the basis of reducing the circuit area, the performance optimization of the low-noise amplifier is realized.