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Antenna device with circular oscillator

A circular antenna technology, applied in the field of communication, can solve the problems of short radio wave wavelength, unstable received signal, and short antenna length, and achieve good amplitude-frequency characteristics, simple and ingenious circuit design, and small standing wave amplitude Effect

Inactive Publication Date: 2015-01-21
PHILEX ELECTRONICS NINGBO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] TV antenna is a kind of antenna, which is generally used in households to receive UHF radio waves. Now there are various shapes of TV antennas on the market, and Yagi TV antennas are the main ones. Due to the size of general household TV antennas It is not large, and the wavelength of the received radio wave is not long, so the length of the antenna is very short for the Yagi TV antenna, which is likely to cause problems such as unstable reception signals and many interference signals.

Method used

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  • Antenna device with circular oscillator
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  • Antenna device with circular oscillator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 2 As shown, the antenna vibrator 200 is a circular vibrator with a radius of 80mm composed of iron wires with a diameter of 2.8mm. The circular vibrator is provided with an opening 210 with a width of 12mm, and an extension 220 with a length of 16.5mm is drawn downwards. The middle of the extension A circular fin 230 with a diameter of 5 mm is provided. The circular fin 230 protrudes from the extension 220 in a horizontal direction, and the thickness of the semicircle where the protrusions on both sides are 2 mm from the center of the circle is 0.8 mm.

[0030] Such as image 3 As shown, the antenna connecting piece 400 includes a first plane 410, a second plane 420, and a third plane 430. The first plane 410 and the second plane 420 are arranged at 150°, and the second plane 420 is provided with an extension part 220. The convex grooves 421 of the graphic protrusions 230 are in close contact. Both sides of the second plane 420 are provided with elastic piec...

Embodiment 2

[0036] If the diameter of the iron wire constituting the circular vibrator is set to 2.6mm, the radius of the circular vibrator is 78mm, the opening width on the circular vibrator is set to 11mm, the length of the extension is set to 15mm, and the diameter of the circular tab on the extension is set The thickness of the semicircle between the protrusions on both sides of the circular lug at 1.8mm from the center of the circle is 0.6mm. The first plane and the second plane in the antenna connecting piece are set at 135°, and the two ends of the groove are 2.0mm in diameter. The middle of the semicircle is 7.3mm long and 2.0mm wide.

[0037] Such as Figure 7 Shown: give UHF radio waves to the antenna device of the second embodiment, test the gain of the antenna device of the second embodiment, and also collect the gain when the frequency points are 470MHz, 550MHz, 650MHz, 862Mhz and 900MHz According to the data, in the frequency band of 470 MHz to 860 MHz, the gain range of the se...

Embodiment 3

[0040] If the diameter of the iron wire constituting the circular vibrator is set to 3.0mm, the radius of the circular vibrator is 82mm, the opening width on the circular vibrator is set to 13mm, the length of the extension is set to 17mm, and the diameter of the circular tab on the extension is set The thickness of the semi-circle at the 2.2mm distance from the center of the circular lug is 1.0mm. The first plane and the second plane in the antenna connection piece are set at 165°, and the two ends of the lug are 2.2mm in diameter. The middle of the semicircle is 7.5mm long and 2.2mm wide.

[0041] Such as Picture 9 Shown: give UHF radio waves to the antenna device of the third embodiment, test the gain of the antenna device of the third embodiment, and also collect the gain when the frequency points are 470MHz, 550MHz, 650MHz, 862Mhz and 900MHz According to the data, in the frequency band 470MHz~860MHz, the gain range of the third embodiment is 18dB~22dB, which is significantl...

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Abstract

The invention relates to an antenna device with a circular oscillator. The antenna device comprises a base, the antenna oscillator and a feeder line. The base comprises a bottom cover and an upper cover. The upper cover is in a shell shape. A notch where the antenna oscillator is inserted is formed in the top face of the upper cover. An antenna connecting piece making tight contact with the antenna oscillator is arranged inside the notch. The antenna oscillator is semicircular and is composed of conductive metal wires. An opening is formed in the circular oscillator, and the circular oscillator is led out downwards to form an extending portion. A circular protruding piece is arranged in the middle of the extending portion and protrudes out of the extending portion in the horizontal direction. Compared with the prior art, the circular oscillator is adopted, and the perimeter of the circular oscillator approximates the half wavelength, so that the antenna transmission gain is high, losses are small, and the signal transmission amplitude-frequency characteristic is good; the antenna oscillator is fixed through the antenna connecting piece after being inserted into the base, so that assembling of the antenna device is greatly simplified, and disassembling, packaging and transportation are convenient.

Description

Technical field: [0001] The present invention belongs to the field of communication, and relates to an antenna, in particular to an antenna device of a circular vibrator. Background technique: [0002] The antenna is a kind of converter that converts the guided wave propagating on the transmission line into electromagnetic waves, or vice versa. The components used in radio equipment to transmit or receive electromagnetic waves, such as engineering systems such as radio communications, broadcasting, television, radar, navigation, electronic countermeasures, remote sensing, and radio astronomy, rely on antennas to work if electromagnetic waves are used to transmit information. [0003] TV antenna is a kind of antenna, generally used in homes to receive UHF radio waves. There are many types of TV antennas on the market. Yagi TV antennas are the main ones. Due to the size of general household TV antennas Not too big, and the wavelength of the received radio waves is not long, so the l...

Claims

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Application Information

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IPC IPC(8): H01Q1/36H01Q7/00H01Q9/04H01Q1/12H01Q1/50
Inventor 陈斌李均
Owner PHILEX ELECTRONICS NINGBO