Bipolarity microstrip oscillator

Abstract

The present invention relates to the field of communication, in particular to a bipolar microstrip vibrator; by including a main PCB board, the main PCB board is provided with four microstrip radiation areas that are up-down and left-right symmetrical; each of the microstrip The strip radiation area includes a microstrip upper arc edge and a microstrip lower arc edge, and the microstrip upper arc edge and the microstrip lower arc edge are closed to form a closed area; each microstrip radiation area is provided with a plurality of An independent half-wavelength microstrip unit; each microstrip unit is dumbbell-shaped with wide ends and a narrow middle; it exhibits excellent communication electrical parameter performance in the 800MHz to 950MHz frequency band, specifically, a single radiating unit The front-to-back ratio of the lowest frequency point is greater than 31dB. At 950MHz, the front-to-back ratio of the lowest frequency point of a single radiating unit is 36dB; while the gain of the low-frequency point is greater than 9.35dBi, and the average gain in the frequency band is greater than 9.8dBi.

Description

technical field [0001] The invention relates to the communication field, in particular to a bipolar microstrip vibrator. Background technique [0002] At present, micro-single antennas have become the mainstream of communication, especially miniaturized antennas. An antenna is a device that converts high-frequency current into radio waves and transmits them into space, and at the same time collects space radio waves and generates high-frequency currents. The antenna can be regarded as a tuned circuit composed of capacitance and inductance; at certain frequency points, the capacitance and inductance of the tuned circuit will cancel each other out, and the circuit will show pure resistance. This phenomenon is called resonance, and the resonance phenomenon corresponds to The working frequency point is the resonant frequency point, and the energy at the resonant frequency point of the antenna has the strongest radiation characteristics; the antenna structure with resonant chara...

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Problems solved by technology

The antenna can be regarded as a tuned circuit composed of capacitance and inductance; at certain frequency points, the capacitance and inductance of the tuned circuit will cancel each other out, and the circuit will show pure resistance. This phenomenon is called resonance, and the resonance phenomenon corresponds to The working frequency point is the resonant frequency point, and the energy at the resonant frequency point of the antenna has the strongest radiation characteristics; the antenna structure with resonant characteristics is called an antenna oscillator, and the antenna structure directly excited by high-frequency current is called an active Vibrator, otherwise called passive vibrator; existing vibrator, including physical vibrator and microstrip vibrator, when designing the antenna according to the needs of actual use, in order to make the resonant frequency point of the antenna meet the set requirements, it is necessary to adjust the resonant frequency point of the antenna The input impedance is adjusted. The adjusted oscillator and the ordinary oscillator still cannot meet the requirements of the current communication standard. The current communication standard is getting higher and higher, and the requirements for the microstrip oscillator are also getting higher and higher. The gain and directivity of the current oscillator , front-to-back ratios need breakthroughs, and the most important thing is to achieve the above-mentioned breakthroughs under the premise of miniaturization

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