2) 90-degree phase shifter

90度移相器
3) phase quadrature

90°相移
1.
The principle and fabrication of the phase quadrature laser interferometer for measuring microscopic asPerity are described.
叙述了测量微观不平度的90°相移激光干涉仪的原理和构成。
4) phase lag 90°

90度相移
5) 90°self-phased structure

90°自相移
1.
The antenna is feeded by infinite balun and used 90°self-phased structure.

