Broadband Internet of Things communication antenna
Through the V-shaped upper and lower ensemble chip design and distributed capacitance structure, the problems of large return loss and large volume weight of the Internet of Things communication antenna in the broadband are solved, and the wideband antenna effect with low return loss and high gain is achieved.
Patent Information
- Application Number
- CN202421085460.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-17
AI Technical Summary
Existing IoT communication antennas have problems such as large return loss, excessive volume and weight, and poor impedance matching in the wide band range.
Using V-shaped upper and lower assembly sheet design, forming a left and right mirror symmetric oscillator group, and forming a distributed capacitance through the linear spacing of the upper and lower assembly sheets, combining coaxial RF lines and short-circuit sheets to achieve a wideband antenna effect with low return loss and high gain. .
The effect of low return loss, high gain, wide band antenna is achieved, solving the problem of large volume and weight, and improving the impedance matching degree.
Smart Images
Figure CN222355438U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a broadband Internet of Things communication antenna, in particular to a logarithmic antenna. Background Art
[0002] Since the digitization of radio and television signals, each frequency point can send 30 to 50 TV programs, so there will be many vacant frequencies in the radio and television band, causing waste of resources; in order to utilize all resources, radio and television can use the vacant frequencies for Internet of Things communications.
[0003] At present, the IoT communication antennas on the market have large return loss in a wide bandwidth range, which affects the transmission efficiency. At the same time, in ordinary IoT communication antennas, their planar oscillators or collective lines are usually designed with round metal tubes to solve the problem of insufficient toughness, which results in the disadvantages of increased antenna volume and weight. In addition, since the distributed capacitance between the planar oscillators or collective lines is large, it is difficult to match the impedance well. Summary of the invention
[0004] The purpose of the utility model is to provide a broadband Internet of Things communication antenna that can solve the problems of large antenna volume and weight and has small distributed capacitance and good impedance matching in view of the above-mentioned deficiencies.
[0005] The technical solution adopted by the utility model is: a wide-band Internet of Things communication antenna, characterized in that it includes a V-shaped upper assembly piece and a lower assembly piece; a plurality of V-shaped vibrators are respectively arranged on one side of the upper assembly piece and the lower assembly piece, and the vibrators on the upper assembly piece and the lower assembly piece constitute a plurality of left-right mirror-symmetrical vibrator groups; the two ends of the upper assembly piece and the lower assembly piece are connected, and the linear spacing between the upper and lower parts of the upper assembly piece and the lower assembly piece constitutes a distributed capacitance; a feeding point is provided on the upper assembly piece connected to one end and a feeding point is provided on the lower assembly piece, and the other end of the connection is a short-circuit piece; the feeding point is connected to a coaxial radio frequency line, and the coaxial radio frequency line extends out along the V-shaped groove in the assembly piece toward the short-circuit piece end.
[0006] The broadband Internet of Things communication antenna is characterized in that the upper assembly plate and the lower assembly plate are provided with five vibrators to form five groups of left-right mirror-symmetrical vibrator groups.
[0007] The broadband Internet of Things communication antenna is characterized in that a plurality of left-right mirror-symmetrical vibrator groups are in a trapezoidal shape.
[0008] The broadband Internet of Things communication antenna is characterized in that the spacing between the upper and lower assembly sheets is 1 to 1.5 mm.
[0009] The broadband Internet of Things communication antenna is characterized in that the distance between the two ends of the short-circuit plate is between 4 and 5 mm.
[0010] With the utility model, the vibrator and the assembly sheet are designed in a V-shape, which can increase toughness and achieve a small volume and light weight. At the same time, the distributed capacitance formed by the linear spacing between the upper and lower assembly sheets is small and the impedance matching is good, thereby achieving the effect of low return loss, high gain and wide-band antenna. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a three-dimensional schematic diagram of the utility model.
[0012] Figure 2 The utility model is a front view schematic diagram.
[0013] Figure 3 It is a sectional schematic diagram of the utility model from the left.
[0014] Figure 4 It is a schematic diagram of the utility model being punched into a sheet and not folded.
[0015] The serial numbers in the figure indicate: feeding point 1, vibrator 2, upper assembly plate 3, short-circuit plate 4, coaxial RF line 5, distributed capacitor 6, lower assembly plate 7 and feeding point 8. DETAILED DESCRIPTION
[0016] The following will be combined with specific embodiments of the utility model to fully describe the technical solution of the utility model. The described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0017] Reference Figures 1 to 4 , a broadband Internet of Things communication antenna includes a V-shaped upper assembly piece 3 and a lower assembly piece 7; five V-shaped vibrators 2 are respectively arranged on one side of the upper assembly piece 3 and the lower assembly piece 7, and the five vibrators 2 on the upper assembly piece 3 and the lower assembly piece 7 constitute five left-right mirror-symmetrical vibrator groups and are trapezoidal; the two ends of the upper assembly piece 3 and the lower assembly piece 7 are connected, and the linear spacing between the upper and lower assembly pieces 3 and the lower assembly piece 7 constitutes a distributed capacitor 6, and the spacing between the upper and lower assembly pieces is 1 to 1.5 mm, preferably 1.2 mm; a feeding point 1 is provided on the upper assembly piece 3 connected to one end, and a feeding point 8 is provided on the lower assembly piece 7, and the other end of the connection is a short-circuit piece 4, and the spacing between the two ends of the short-circuit piece 4 is between 4 and 5 mm, preferably 4.5 mm; the feeding point 1 is connected to a coaxial radio frequency line 5, and the coaxial radio frequency line 5 is preferably 50Ω, and the coaxial radio frequency line 6 extends from the V-shaped groove in the upper assembly piece 3 toward the end of the short-circuit piece 4.
[0018] The above-mentioned broadband Internet of Things communication antenna is formed by combining vibrator metal sheets after metal sheets are cut and stamped ( Figure 4 ), the metal sheet formed after cutting is folded from the short-circuit sheet 4, and then the feeding point 1 and the feeding point 8 are welded, thereby the distributed capacitor 6 and the short-circuit sheet 4 form a smaller angle state. When the signal is transmitted through the vibrator 2, the feeding point 1, the upper assembly sheet 3, the lower assembly sheet 7 and the coaxial RF line 5, a 600-700MHz wide-band logarithmic antenna vibrator body is formed to achieve interactive transmission and reception; because the vibrator 2, the upper assembly sheet 3 and the lower assembly sheet 7 are V-shaped, the toughness can be increased to achieve a small size and light weight, and at the same time, the upper and lower assembly sheets are linearly spaced with a spacing of 1.2mm, and the distributed capacitance formed is small and the impedance matching is good, so it can achieve the effect of low return loss, high gain and wide-band antenna. After actual testing, the 600-700MHz wide-band Internet of Things antenna has the effects of high gain and low return loss.
Claims
1. A broadband Internet of Things communication antenna, characterized by: It comprises a V-shaped upper assembly sheet and a lower assembly sheet; a plurality of V-shaped vibrators are respectively arranged on one side of the upper assembly sheet and the lower assembly sheet, and the vibrators on the upper assembly sheet and the lower assembly sheet constitute a plurality of left-right mirror-symmetrical vibrator groups; the two ends of the upper assembly sheet and the lower assembly sheet are connected, and the linear spacing between the upper and lower parts of the upper assembly sheet and the lower assembly sheet constitutes a distributed capacitor; a feeding point is arranged on the upper assembly sheet connected to one end, and a feeding point is arranged on the lower assembly sheet, and the other end connected is a short-circuit sheet; the feeding point is connected to a coaxial radio frequency line, and the coaxial radio frequency line extends along the V-shaped groove in the assembly sheet toward the short-circuit sheet end.
2. The broadband Internet of Things communication antenna according to claim 1, characterized in that: The upper assembly plate and the lower assembly plate are provided with five vibrators to form five groups of left-right mirror-symmetrical vibrator groups.
3. The broadband Internet of Things communication antenna according to claim 1, characterized in that: A plurality of left-right mirror-symmetrical oscillator groups are trapezoidal in shape.
4. The broadband Internet of Things communication antenna according to claim 1, characterized in that: The upper and lower spacings between the upper assembly sheet and the lower assembly sheet are 1 to 1.5 mm.
5. The broadband Internet of Things communication antenna according to claim 1, characterized in that: The distance between the two ends of the short-circuit plate is between 4 and 5 mm.