1. Please select the type of Antenna service you receive. 请选择您接收的天线服务的类型。
2. What is the impedance of half wavelength single pole antenna? 一半波长独身者杆的阻抗是什么天线?
3. The phase center of antenna is generally different from its geometry center. 通常天线的相位中心与其几何中心是不一致的。
英英解释
n.
1. an electrical device that sends or receives radio or television signals
2. sensitivity similar to that of a receptor organ
3. one of a pair of mobile appendages on the head of e.g. insects and crustaceans; typically sensitive
