Abstract:
본발명의실시예에따른소형기지국안테나는제 1 및제 2 마이크로스트립라인으로에칭되어, 큐브내에제공되는기판; 상기제 1 마이크로스트립라인상에제공되는제 1 금속단락판및 상기제 1 금속단락판상에제공되는제 1 방사패치를포함하는제 1 역 F 안테나; 상기제 2 마이크로스트립라인상에제공되는제 2 금속단락판및 상기제 2 금속단락판상에제공되는제 2 방사패치를포함하고, 상기제 1 역 F 안테나에대향하는제 2 역 F 안테나; 그리고상기제 1 역 F 안테나와제 2 역 F 안테나사이에제공되는격리체를포함한다. 본발명에의하면, 넓은대역폭과높은이득을얻을수 있으며, 안테나사이의격리도를향상시킬수 있다.
Abstract:
본 발명은 빔 형성 장치에 관한 것이다. 본 발명의 빔 형성 장치는 전력 증폭된 신호들을 피드백시키고, 디지털 신호 처리단에서 아날로그 소자의 비선형성 개선을 위한 디지털 선 왜곡과 빔 형성을 위한 위상 제어에 이용한다. 이를 통해, 정밀한 빔 형성이 가능한 빔 형성 장치를 구현할 수 있다.
Abstract:
According to the present invention, in order to compensate transmission characteristics to allow a multi-array transmitter of a wire or wireless system to effectively transmit a transmission signal, a nonlinear pre-filter and a transfer function compensating filter are independently installed on a transmission path. A complex compensation value for allowing a high power amplifier of which non-linearity is determined according to the amplitude of a signal to be linear and a complex compensation value for allowing transfer characteristics between arrayed transmitters to coincide with each other are adaptively applied. By adaptively applying an arbitrary transmission filler property, the number of additional digital circuits for compensating linearity and an array error of a transmitter may be reduced. In addition, according to the present invention, the functions of compensating linearity and an array error are performed by one multi-functional filter so that the number of unnecessary digital circuits, caused because the functions of compensating linearity and an array error are performed by an additional profiler according to the prior art, can be prevented from being increased, thereby reducing the implement cost and more effectively transmitting a transmission signal.
Abstract:
PURPOSE: A signal distortion component adjusting apparatus and method, and a system using the same are provided to adjust error vector magnitude (EVM) of a subcarrier in a specific location. CONSTITUTION: A signal distortion component adjusting part adjusts a signal distortion component by adding Pe((n+N/2)%N), which is an additional signal distortion component, to e(n) which is the signal distortion component and where Th, which is a threshold value predetermined to reduce peak power, is subtracted from the absolute value of x(n) which is a time-domain signal of an input signal. [Reference numerals] (AA) Start; (BB) End; (S410) Calculate Pe((n+N/2)%N) using e(n); (S420) Calculate Cn using Pe((n+N/2)%N); (S430) Select G in order to make one out of two C(k) of an odd-number frequency and an even-number frequency zero
Abstract translation:目的:提供信号失真分量调节装置和方法,以及使用该信号失真分量调节装置和方法的系统,以调整特定位置的子载波的误差矢量幅度(EVM)。 构成:信号失真分量调整部通过将作为附加信号失真分量的Pe((n + N / 2)%N)与作为信号失真分量的e(n)相加来调整信号失真分量,其中Th 是从输入信号的时域信号的x(n)的绝对值中减去预定的用于降低峰值功率的阈值。 (附图标记)(AA)开始; (BB)结束; (S410)使用e(n)计算Pe((n + N / 2)%N); (S420)使用Pe((n + N / 2)%N)计算Cn; (S430)选择G,以使奇数和偶数频率零的两个C(k)中的一个