Antenna evaluation device and method

An antenna evaluation and antenna technology, which is applied to antennas, measuring devices, antenna radiation patterns, etc., and can solve problems such as inability to correct the phase of radio waves

Active Publication Date: 2011-06-22
PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the conventional border correction method, since only the power of the radio wave received by the detector 905 is used, the phase of the radio wave radiated from each scatterer antenna cannot be corrected.

Method used

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  • Antenna evaluation device and method
  • Antenna evaluation device and method

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no. 1 Embodiment approach

[0065] figure 1 It is a perspective view of main parts showing the configuration of an antenna evaluation device (also referred to as a spatially multiplexed wave generating device or a fading simulator) according to the first embodiment of the present invention, figure 2 yes means figure 1 A block diagram of the configuration of the multiplexed wave control measurement device 200A.

[0066] As will be described later in detail, the antenna evaluation device according to this embodiment is characterized in that the computer 10 controls the transmission circuit 30a such that the scatterer antennas 50a-n (n=1, 2, . . . , N, In the present embodiment, N is 5) radiate radio waves individually, and perform calibration as follows: The transmission circuit 30a is controlled based on the radio waves radiated independently from the scatterer antennas 50a-n so that the received signals respectively measured by the calibration receiving antennas 60a The amplitude of S60a coincides w...

no. 2 Embodiment approach

[0089] Figure 8 is a block diagram showing the configuration of a multiplex wave control measurement device 200B according to the second embodiment of the present invention, Figure 9 yes means Figure 8 A flowchart of the calibration process of the antenna evaluation device executed by the computer 10 of FIG. Compared with the multiplexed wave control generation device 200A according to the first embodiment, the multiplexed wave control measurement device 200B according to this embodiment is characterized by further comprising: a network analyzer 20b including a receiver 21b, a The amplitude phase adjustment circuit 72 and the attenuator 84 of the phase unit 73 and the attenuator 74 are performed using an array antenna including receiving antennas 60a and 60b arranged at a distance of half a wavelength from each other. Figure 9 correction processing.

[0090] Receiving antennas 60a and 60b are half-wavelength dipole antennas that receive vertically polarized radio waves,...

no. 3 Embodiment approach

[0102] Figure 10 It is a block diagram showing the configuration of a multiplex wave control measurement device 200C according to the third embodiment of the present invention. and, Figure 11 (a) means Figure 10 An explanatory diagram of the arrangement of the scatterer antennas 50a-1 to 50a-5 and the receiving antenna 60av at the time of the correction of the vertically polarized wave executed by the computer 10, Figure 11 (b) means Figure 10 An explanatory diagram of the arrangement of the scatterer antennas 50b-1 to 50b-5 and the receiving antenna 60ah when the computer 10 executes the correction of the horizontally polarized wave. Compared with the multiplexed wave control generation device 200A according to the first embodiment, the multiplexed wave control measurement device 200C according to this embodiment is characterized by further comprising: The pole antenna is the scatterer antenna group 50b of the scatterer antennas 50b-1 to 50b-5, the distributor 40, an...

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Abstract

When each radio wave independently emitted from each scatterer antenna (50-n) is respectively received using a receiving antenna for calibration (60a), a computer (10) measures the amplitude and phase of each received signal (S60a), with a transmitted signal (S22a) used as a reference signal, decides the target amplitude on the basis of each amplitude measured, and decides the target phase on the basis of each phase measured. The reference attenuation amount control voltage (VAa-n) for each attenuator (14a-n) is set to each attenuation amount control voltage for bringing each measured amplitude into agreement with the same target phase respectively, and the reference phase shift amount control voltage (VPa-n) for each phase shifter is set to the phase shift control voltage for bringing each measured phase into agreement with the same target phase respectively.

Description

technical field [0001] The present invention relates to an antenna evaluation device for evaluating antenna performance of a radio communication device and an antenna evaluation method using the antenna evaluation device. Background technique [0002] Conventionally, it has been proposed to install a plurality of transmitting antennas for modeling scatterers (hereinafter referred to as scatterer antennas) at equal intervals on a circle with a predetermined radius, and to generate An antenna evaluation device for spatially multiplexed waves (for example, refer to Patent Document 1 and Non-Patent Documents 1 to 4). In this antenna evaluation device, the transmission signal generated by the signal generator is divided into the same number of transmission signals as the scatterer antenna, and each distributed transmission signal is radiated from the corresponding scatterer antenna through a phase shifter and an attenuator. go out. At this time, by adjusting the phase shift amo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/10
CPCH01Q3/267G01R29/105
Inventor 坂田勉山本温天利悟
Owner PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
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