US 12,345,751 B2
Method and system for testing phased array antenna with independent signal calibration
Li Han Chang, Hsinchu (TW); and Yu-Jiu Wang, Hsinchu (TW)
Assigned to TRON FUTURE TECH INC., Hsinchu (TW)
Filed by TRON FUTURE TECH INC., Hsinchu (TW)
Filed on Dec. 14, 2022, as Appl. No. 18/065,895.
Claims priority of provisional application 63/368,669, filed on Jul. 18, 2022.
Claims priority of provisional application 63/366,939, filed on Jun. 24, 2022.
Prior Publication US 2023/0417811 A1, Dec. 28, 2023
Int. Cl. G01R 29/08 (2006.01)
CPC G01R 29/0878 (2013.01) [G01R 29/0871 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for testing an antenna array, comprising:
receiving a probe needle set and a shielding structure, wherein the shielding structure comprises an array of conductive pads, wherein the antenna array includes a substrate and an array of antenna devices, each of the antenna devices comprising:
a first slit and a second slit arranged in a first layer on a first surface of the substrate;
a first signal port and a second signal port arranged in a second layer adjacent to the first layer;
a first feed line and a second feed line arranged in the second layer and connected to the first signal port and the second signal port, respectively, wherein the first feed line and the second feed line have different line lengths; and
a radiation element disposed in a third layer on a second surface of the substrate opposite to the first surface;
causing the shielding structure to cover the radiation element of at least one antenna device; and
causing the probe needle set to contact the first feed line and the second feed line for testing the at least one antenna device.