2 results about "Slotted line" patented technology

This invention discloses an absorptive microstrip slotted antenna and its filtering and absorption method. The microstrip slotted antenna includes a microstrip feed line, a slotted ground plane, a bandpass filter absorption circuit, and a dielectric substrate. The microstrip feed line is mounted on the upper surface of the dielectric substrate, and the slotted ground plane is mounted on the lower surface of the dielectric substrate. The bandpass filter absorption circuit is disposed on the microstrip feed line and includes a resistor and a resonant circuit connected in parallel. The resonant circuit includes a capacitor and an inductor connected in series. It also includes a feed connector connected to the microstrip feed line. This application achieves anti-reflection performance by using a microstrip line structure to excite the slotted line and connecting a bandpass filter absorption circuit in series at the optimal loading position of the microstrip feed line. This invention has a wide anti-reflection bandwidth, extremely high structural integration, and good antenna radiation performance, making it well-suited for application in the field of wireless communication systems.

This invention discloses a miniaturized, low-loss slotted differential power combiner for the millimeter-wave band. The combiner comprises a microstrip line, a slotted line, an amplifier, an input port, and an output port. The ninth microstrip line (MLIN9) is T-shaped, with the output port (Port9) connected in the middle. The nine microstrip lines have two symmetrical paths with identical structures at their ends. One path connects to the first microstrip line (MLIN1) in the first amplifier network via the tenth (MLIN10) and eleventh (MLIN11) microstrip lines; the other path connects to the fourth microstrip line (MLIN4) in the second amplifier network via the eighth (MLIN8) and seventh (MLIN7) microstrip lines. This invention significantly reduces the size of the slotted line termination capacitor while increasing the gain of the power amplifier core by improving the imaginary impedance of the amplifier core. It is suitable for power amplifier chip design in the transceiver link of high-performance millimeter-wave communication radar systems, offering advantages such as small size and low loss.