Omnidirectional radiation vibrator array antenna for loaded coupled feeding
A technology of omnidirectional radiation and coupling feeding, which is applied in the direction of antenna, antenna array, radiating element structure, etc., can solve the problems of poor omnidirectionality, low gain per unit electrical length, narrow bandwidth of omnidirectional antenna, etc., and achieve improvement of out-of-roundness High degree, conducive to miniaturization and mass production, and improve the omnidirectional effect
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specific Embodiment approach 1
[0009] Specific implementation mode 1. Combination Figure 1 to Figure 5 This embodiment is described. The omnidirectional radiating dipole array antenna of the loading type coupling feeding in this embodiment includes a dielectric plate 1, a coplanar waveguide central feeder 6, a feeding port matching stub 7, a radial terminal load 8, and an upper horizontal feeder 9 , the lower horizontal feeder 10 and two groups of oscillators, the front of the dielectric board 1 is printed with two groups of oscillators, the coplanar waveguide center feeder 6, the feeding port matching branch 7 and the radial terminal load 8, the radial terminal load 8, the coplanar waveguide The central feeder 6 and the feeding port matching stub 7 are arranged sequentially from top to bottom, and the upper end of the coplanar waveguide central feeder 6 is connected to the radial terminal load 8, and the lower end of the coplanar waveguide central feeder 6 is connected to the feeding port matching stub 7 ...
specific Embodiment approach 2
[0010] Specific embodiment two, combine figure 1 The present embodiment will be described. The shape of the radial terminal load 8 of this embodiment is composed of a rectangle at the top and a semicircle at the bottom, and the short side of the rectangle is equal to the diameter of the semicircle. The length of the long side of the rectangle is L1, and the width of the short side (diameter of the semicircle) is W1. This design can play the role of radiating electromagnetic waves, thereby further improving the gain of the antenna. Other components and connections are the same as those in the first embodiment.
specific Embodiment approach 3
[0011] Specific embodiment three, combine figure 2 Describe this embodiment, the distance between the feeding port matching stub 7 and the left oscillator 2 and the distance between the feeding port matching stub 7 and the right oscillator 3 in this embodiment are equal. Other compositions and connections are the same as those in Embodiment 1 or 2.
[0012] The whole antenna is a double-sided printed circuit board, the thickness D1 of the dielectric board 1 is 1.5mm, and the dielectric constant ε of the dielectric board 1 is r It is a 4.4 epoxy (FR4) substrate.
[0013] The feed port is loaded with a feed port matching stub 7 to match the antenna feed, and the feed port matching stub 7 plays the role of adjusting the input impedance, making the feeding efficiency higher; loading a horizontal metal strip 4 is used to improve the antenna's The current distribution on the antenna makes the radiation current on the antenna more uniform, thereby greatly improving the out-of-roun...
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