A Folded Variable Frequency Dipole Antenna
A dipole antenna and folding device technology, which is applied in the direction of folding antennas, antennas, antenna parts, etc., can solve the problems of dipole antennas such as unadjustable frequency, impedance matching, and large size, so as to improve the versatility of the antenna , Antenna frequency conversion is easy, easy to operate
Active Publication Date: 2022-05-17
CNGC INST NO 206 OF CHINA ARMS IND GRP
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Problems solved by technology
[0004] In order to solve the problems that the frequency of the traditional dipole antenna cannot be adjusted, the impedance matching cannot be adjusted according to the frequency change, and the size is large and difficult to store and transport, the present invention proposes a foldable variable frequency dipole antenna
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Embodiment Construction
[0019] Now in conjunction with embodiment, accompanying drawing, the present invention will be further described:
[0020] see figure 1 , a folded frequency-variable dipole antenna, including a pair of dipole arms 1, a fixed folding device 2, a balun 3, a bottom fixing device 4 and other structures, wherein the dipole arm 1 is installed on the fixed folding device 2, and each side is installed A vibrator arm 1; the fixed folding device 2 connects the vibrator arm 1 and the balun 3; the balun 3 is fixed on the bottom fixing device 4.
[0021] see figure 2 , the fixed folding device 2 includes a fixing device 5 and a folding device 6, and the folding device 6 is connected to the vibrator arm 1 by screws. Since the vibrator arm 1 and the folding device 6 are in the form of sockets, the dipole arms 1 on both sides can be folded. The fixing device 5 is connected to the folding devices 6 on both sides by screws, so as to ensure the mutual positional relationship between the foldi...
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The invention relates to a foldable frequency-variable dipole antenna, which mainly solves the problems that the frequency of the traditional dipole antenna cannot be adjusted, the impedance matching cannot be adjusted correspondingly with the frequency change, and the size is large and difficult to store and transport. The folded variable frequency dipole antenna includes an adjustable dipole arm to realize the adjustable frequency of the dipole antenna; at the same time, the folded variable frequency dipole antenna has a balun with adjustable length, which makes the antenna impedance matching more excellent; in addition The vibrator arm of the foldable frequency-variable dipole antenna can be folded to realize miniaturized storage and transportation of the dipole antenna; in addition, the foldable frequency-variable dipole antenna has a simple structure, convenient and reliable adjustment, and effectively improves efficiency.
Description
technical field [0001] The invention belongs to the technical field of antennas, and relates to a dipole antenna, in particular to a foldable frequency-variable dipole antenna, which improves the versatility and portability of the dipole antenna. Background technique [0002] As one of the most common antenna forms in engineering, dipole antennas are widely used in broadcasting, television, communications, radar, navigation and other fields due to their simple structure, low cost, and stable performance. At present, most dipole antennas have a fixed structure, resulting in a fixed antenna frequency; there are also some variable frequency dipole antennas, but they can only change the size of the dipole arm, and the balun section cannot be changed, resulting in poor matching effect; at the same time, the traditional dipole antenna The dipole arm of the pole antenna is perpendicular to the balun and cannot be retracted or folded, resulting in a large overall size and inconvenie...
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IPC IPC(8): H01Q1/10H01Q1/12H01Q1/36H01Q1/50H01Q5/20
CPCH01Q1/10H01Q1/1235H01Q1/12H01Q1/36H01Q1/50H01Q5/20
Inventor 田江杨亚兵石俊峰姜世波张晨光闫兴锋李玉宇段军袁健张盛华郝建波程杰祝起凡
Owner CNGC INST NO 206 OF CHINA ARMS IND GRP