2-18GHz Ultra-Wideband Planar Helical Antenn

Model ZD021804 2-18GHz Planar Helical Antenna is a professional-grade Ultra-Wideband Antenna integrating ultra-wide frequency coverage, low VSWR characteristics and high stability. With comprehensive performance advantages, it has become a core signal transmission component in fields such as communication, testing, and industrial IoT.

As a high-performance 2-18GHz Planar Helical Antenna, its core highlight lies in the ultra-wide frequency coverage of 2GHz-18GHz, which can seamlessly adapt to multi-band devices without frequent antenna replacement, greatly improving usability; at the same time, it adopts a right-hand circular polarization design, whose signal anti-interference capability is far superior to ordinary antennas, and can maintain stable transmission in complex electromagnetic environments. More importantly, it is a typical Low VSWR Helical Antenna, with VSWR strictly controlled at ≤2.5, combined with a low back lobe of ≤-10dBc, which effectively reduces signal reflection loss and ensures the purity and strength of received signals. In terms of gain performance, it is ≥-7dBi above 2GHz, ≥-2dBi above 3GHz, ≥1dBi above 4GHz, and even as high as ≥4.5dBi at 9-10GHz. Moreover, the 3dB beamwidth is stably maintained at 55.9°-87.1° in the 2-18GHz range, with wide coverage and uniform signal distribution, perfectly meeting scenarios with high requirements for signal quality.

In terms of structure and environmental adaptability, this 2-18GHz Planar Helical Antenna also performs excellently: it uses a high-strength Alufer antenna cavity, combining durability and lightweight advantages, with a weight of ≤50g and reference dimensions of ≤55mm×55mm×40mm (excluding connector). Its compact size can be flexibly installed on various devices; it is equipped with an SMA-50K stainless steel connector, ensuring firm connection and corrosion resistance, and extending service life. In addition, it has strong environmental adaptability, capable of working stably in harsh operating conditions of -40℃~+55℃ and being safely stored in an environment of -55℃~+70℃. Its grayish sea color can integrate with the appearance of various devices, making it widely applicable to scenarios such as wireless communication base stations, RF testing instruments, industrial control terminals, and outdoor monitoring equipment. Whether it is indoor precision testing or complex outdoor environments, this high-quality product combining Ultra-Wideband Antenna and Low VSWR Helical Antenna can provide reliable signal transmission support.