2GHz-18GHz Wideband Planar Spiral Antenna

The ZD20180-M planar spiral antenna launched by ZDTECH is a high-frequency RF device covering a wide frequency range of 2GHz~18GHz, capable of meeting high-frequency signal transmission needs in multiple scenarios. It boasts excellent core technical indicators: the Voltage Standing Wave Ratio (VSWR) is ≤2.5, ensuring stable signal transmission; in terms of gain, it reaches ≥-4dBi in the 2GHz-4GHz band and ≥1dBi in the 4GHz-18GHz band, which can effectively improve the efficiency of signal reception and transmission. Adopting a circular polarization design with an axial ratio ≤3, the antenna has a deviation of ≤5° between the beam direction and the axis direction. Combined with a horizontal beamwidth of 60°~130° and a vertical beamwidth of ＞50°, it offers a wider signal coverage range.

In terms of structure and environmental adaptability, the antenna is equipped with a universal SMA connector for easy connection to various RF devices, and reserved installation holes at the rear end simplify the installation process. Its reference dimension is ≤70mm×77mm×60mm (excluding the socket), and the compact size makes it suitable for space-constrained scenarios. Meanwhile, it has strong environmental resistance, with an operating temperature range of -55℃~+75℃ and a storage temperature range of -65℃~+85℃, enabling stable operation in complex temperature-varying environments. It is widely used in communication systems, electronic test and measurement, radar and other fields.