Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document.
Note: Even the most advanced machine translation cannot match the quality of professional translators.
Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
What Are the Differences Between Dual-Polarized and Single-Polarized Antennas?
Dual-polarized and single-polarized antennas differ in the following aspects:
Transmit angle:
- In mountainous or plain villages of open regions, signals of mobile phones easily match vertical-polarized signals. Therefore, vertical-polarized antennas provide better coverage effect than non-vertical-polarized antennas.
- In urban areas, electromagnet waves are reflected many times among buildings. Metal objects and metal oxide coated glass in and outside buildings may cause the polarization direction to change. Vertical-polarized antennas (single- and dual-polarized) and ±45° dual-polarized antennas provide similar coverage capabilities.
Receive angle:
- Single-polarized antenna: receives and transmits radio signals using two separate antennas. Radio signals are transmitted and received at the horizontal or vertical direction. Therefore, a large installation space and large maintenance workload are required.
- Dual-polarized antenna: receives and transmits radio signals using one antenna. The transmit direction of radio signals is vertical to the receive direction.
Antenna dimension: Dipoles of a dual-polarized antenna in different polarization directions are sufficiently isolated even if the dipoles are overlapped. Therefore, a dual-polarized antenna is no larger than a single-polarized antenna.