Microstrip antenna structure and method for radiating electromagnetic signals

Abstract

The invention provides a microstrip antenna structure and a method for radiating electromagnetic signals. The microstrip antenna structure comprises a signal input unit, a signal radiation unit, a grounding unit and a dielectric substrate unit. The signal input unit is used for inputting electromagnetic wave signals. The signal radiation unit is connected with the signal input unit and is used forreceiving and radiating the electromagnetic wave signals into space, and comprises a microstrip line and a plurality of antenna array elements, wherein the antenna array elements are distributed at equal intervals along the microstrip line, and the length of the microstrip line penetrating through the antenna array elements is smaller than the short sides of the antenna array elements. The grounding unit is used for forming a radio frequency ground. The dielectric substrate unit is provided with a first surface and a second surface opposite to the first surface, the signal input unit and thesignal radiation unit are located on the first surface, and the grounding unit is located on the second surface. According to the microstrip antenna structure and the method for radiating the electromagnetic signals, the contact length of the electromagnetic signals between the microstrip lines and the antenna array elements is reduced, and the antenna transmission efficiency and bandwidth are improved.

Description

technical field [0001] The invention belongs to the technical field of radar antennas, in particular to a microstrip antenna structure and a method for radiating electromagnetic signals. Background technique [0002] Radar has been widely used in various detections. The basic task is to detect the target and measure the state parameters such as the distance, direction and angle of the target. The radar includes an antenna, a transmitter and a receiver. The transmitter generates enough electromagnetic energy and transmits it through the transceiver switch. For the antenna, the antenna radiates the electromagnetic energy into the atmosphere, concentrates it in a very narrow direction to form a beam, and propagates forward. After the electromagnetic wave encounters the target in the beam, it will be reflected in all directions, and part of the electromagnetic energy Reflected back to the direction of the radar, it is acquired by the radar antenna, and the energy acquired by the...

AI Technical Summary

Problems solved by technology

In the traditional microstrip antenna, since the electromagnetic signal passes through each array element, a certain amount of energy will be emitted, and the contact length of each array element is longer, resulting in low emission efficiency and narrow bandwidth of the microstrip antenna with this structure.

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