JP3033336U - Planar antenna - Google Patents

Abstract

(57) [Abstract] [Problem] Conversational communication is unstable or between regions with noise, or
Conversational communication between areas where communication is not possible is clearly and stable. SOLUTION: An arbitrary number of conductive elements, which are made of an electrically conductive material, are arranged in parallel with a central axis of the horizontal axis at a logarithmic interval to the central axis of the horizontal axis, and the central element of the vertical axis is arranged, and curved lines are provided at both ends of the horizontal axis. A conductive element of the shape is provided.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 This invention relates to a planar antenna.

[0002]

[Prior art]

 Conventionally, there was a drawback in that no clear conversation was possible even when using a mobile phone in a car or in a room in an area where communication was unstable.

[0003]

[Problems to be solved by the invention]

 It is to clarify conversational communication with a mobile phone in a car or in an area where communication is unclear.

[0004]

[Means for solving the problem]

 Of the central elements consisting of the vertical and horizontal axes made of electrically conductive material, the conductive elements are arranged in parallel with the central element of the horizontal axis at logarithmic intervals in parallel with the central element of the vertical axis, and both ends of the central element of the horizontal axis are arranged. That is, a curved conductive element is provided in the portion.

[0005]

[Embodiment of the invention]

 An embodiment of the invention will be described with reference to the drawings. FIG. 1 shows that an arbitrary number of conductive elements 3, 3a, 4, 4a, 5, 5a, etc. are arranged in parallel with the central element 2 on the horizontal axis in order from the element 3, 3a to the central element 1 on the vertical axis at logarithmic intervals. The length of each element from the central element 2 to the conductive elements 5 and 5a on the horizontal axis is set to a length related to the wavelength of the operating frequency, and a curved shape is formed on both ends of the central element 2 on the horizontal axis. By providing the conductive elements 6 and 6a, the frequency bandwidth can be widened. Therefore, it is used in the frequency band used for mobile phones and PHS.

FIG. 2 shows a gain measuring method for the planar antenna A of the present invention. The standard signal oscillator D transmits from the standard signal oscillator D by providing a quarter wavelength vertical antenna B at a distance R more than three times the wavelength of the measurement frequency from the standard signal oscillator D vertical antenna. By receiving the wave and measuring the received signal voltage value received by the spectrum analyzer, the received voltage of each frequency is shown. When a received wave is provided and measured, a voltage amplification value of 800 MHz: 30 dB, 850 MHz: 40 dB, 1 GHz, 1.5 HGHz: 25 dB, 2.5 GHz: 20 dB is obtained. The size of the planar antenna of the present invention used for the measurement is about 6 cm on the vertical axis and about 12 cm on the horizontal axis. The voltage ratio is shown.

[0007]

[Effect of the invention]

 It is effective in clarifying the conversational communication between the form telephone in the vehicle or the room and the PHS telephone in the unstable communication area and enabling the conversational communication between the points where communication is impossible.

[Brief description of the drawings]

FIG. 1 is a front view of a planar antenna.

FIG. 2 shows a performance measurement diagram of a planar antenna.

[Description of Symbols] 1 central element on the vertical axis 2 central element on the horizontal axis 3, 3a conductive element 4, 4a conductive element 5, 5a conductive element 6, 6a curved conductive element A planar antenna B receiving antenna C transmitting antenna D Standard signal oscillator E spectrum analyzer

Claims (1)

[Utility model registration claims] 1. In a planar antenna, of the central elements (1, 2) consisting of a vertical axis and a horizontal axis made of an electrically conductive material,
An arbitrary number of conductive elements (3, 3a, 4, 4b, made of electrically conductive material are arranged in parallel with the central element (2) on the horizontal axis at logarithmic intervals.
5, 5c) are arranged in the central element (1) on the vertical axis, and curved conductive elements (6, 6a) are provided at both ends of the central element (2) on the horizontal axis.
A planar antenna characterized by being provided with.