An adjustable probe array device and method for active antenna multi-probe amplitude and phase testing
A probe array, amplitude and phase testing technology, applied in the field of communication, can solve the problems of high cost of the control system, complex driving device, impact on measurement accuracy, etc., achieve the effect of simple spacing adjustment drive, reduce system complexity, and improve system reliability
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Embodiment 1
[0049] Embodiment 1 The first embodiment provided by the present invention is a 2×4 probe array, such as figure 2 As shown, including the support plate 1, there are 2×4 hollow probe adjustable areas 2 distributed on the support plate 1, and a probe 3 is installed in each adjustable area, therefore, 8 probes form a 2×4 probe array. A cross cursor 4 is installed in the probe array, and the installation position of the cross cursor 4 is different according to different adjustment methods. For example: in the unilateral adjustment mode, the cross cursor is located at the center of the probe on the fixed side; in the bilateral adjustment mode, the cross cursor is located in the center of the array in this direction, which is convenient for alignment with the antenna unit to be tested.
[0050] Wherein, the support plate 1 provides support for the probe array, and is generally an aluminum or steel metal plate. In order to strengthen the overall strength of the support plate and a...
Embodiment 2
[0056] Embodiment 2 This embodiment provides a method for testing the amplitude and phase of an active antenna with a 2×4 probe array, which specifically includes:
[0057] (1) Determine the probe adjustment method and adjustment range
[0058] The probe adopts a one-sided adjustment method in the X direction and a double-sided adjustment method in the Y direction. Therefore, the adjustable area size and adjustable range of the probe in the X and Y directions can be calculated according to the following steps.
[0059] The X direction is unilaterally adjusted, and the x coordinate of a fixed row of probes ②④⑥⑧ is i=0, so the adjustable area (the size of the hollow area) in the X direction is px+δx*0=px. ①③⑤⑦The x-coordinate of the probe is i=1, so the adjustable area is px+δx*1=px+δx, and the adjustable range of the single-side probe is δx, such as Image 6 ①③⑤⑦ probe in the
[0060] The Y direction is bilateral adjustment, the y coordinate of the center of this direction is...
Embodiment 3
[0067] Embodiment 3 This embodiment provides another method for testing the amplitude and phase of an active antenna with a 2×4 probe array, which specifically includes:
[0068] (1) Determine the probe adjustment method and adjustment range
[0069] The X and Y directions all adopt the mode of adjusting the spacing on both sides, and the adjustment range of the probe in the Y direction is unchanged, which is the same as that in Embodiment 2, such as Figure 7 shown.
[0070] The X direction is adjusted on both sides, the x coordinate of the center is 0, the x coordinate of the probe ①②③④⑤⑥⑦⑧ is i=0.5, so the size of the adjustable area is px+δx*0.5=px+δx / 2. δx / 2 can be adjusted on both sides of the X direction, such as Figure 7 shown.
[0071] (2) Drive design of adjustable probe array
[0072] The adjustment in the Y direction, the drive design is the same as that of Implementation 2, so 2 or 4 motor drives are required.
[0073] In the X direction, 2 independent motor...
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