Agency for Defense Development

Jaedon Park

Taehoon Kim

Inwoong Kang

Jong Sung Park

Jongsung Park

Youngsin Kim

Seungwon Park

Jungho Joe

Sanggeun Jeon

This application relates to a full duplex communication device. In one aspect, the device includes a transmission/reception antenna configured to receive a received signal corresponding to a transmitted signal. The device may also include an analog cancellation unit configured to set values of elements constituting an analog cancellation circuit and cancel an interference signal included in the received signal using the set values of the elements constituting the analog cancellation circuit. The device may further include a digital cancellation unit configured to cancel a remaining interference signal included in the received signal. Some embodiments can minimize the influence of distortion of a transmitted signal due to non-linearity of a power amplifier during an active analog self-interference cancellation process.

Device for self-interference cancellation of full duplex communication system and method thereof

In accordance with an aspect of the present disclosure, there is provided a power amplification apparatus, the apparatus comprising: an input part; a first-1 transformer and a first-2 transformer connected to the input part in parallel; a first amplifier and a second amplifier connected to the first-1 transformer and the first-2 transformer, respectively; a first switch connected to one side of the first-2 transformer; a second-1 transformer and a second-2 transformer connected to the first amplifier and the second amplifier, respectively, and connected to an output part in parallel; and a second switch connected to one side of the second-2 transformer.

Power amplification apparatus

Growing community of inventors

Daejeon, South Korea

Jaedon Park