This paper proposes a solution to the out-of band oscillation signal and in-band low transmitter power output that occurrs during the low-temperature operation test for the new mine detector GPR signal transmission and reception module. Tests were performed by applying the optimal values of capacitors and inductors through circuit analysis simulation under the limited space, as a result, it was confirmed that the gain and return loss were improved at all-band thereby preventing oscillation signal and low transmitter power output.

• 박준영(국방기술품질원 지휘정찰센터) | Jun-Young Park Corresponding author
• 김도훈(한화시스템) | Do-hoon Kim
• 임상진(국방기술품질원) | Sang-Jin Lim