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 Wideband

Lightweight Wideband Plane Spiral Antenna with SMA Connector 2000-18000MHz Right-Handed Circular Polarization

ZD201804
ZD201804 Plane Spiral Antenna Array is a RF antenna with a wide frequency band covering 2-18GHz, adopting a right-handed circular polarization design with a VSWR ≤2.5 and a beam width ≥90°. It features graded gain corresponding to different frequency bands, with a maximum gain of 4.5dBi@9/10GHz and a back lobe ≤10dB. The antenna cavity is made of Alufer with a stainless steel SMA-50K connector, and the overall size is ≤55×55×40mm with a weight ≤50g. Its compact design is suitable for installation in various scenarios. With a working temperature range of -50℃~+70℃ and a storage temperature range of -50℃~+65℃, it has excellent wide temperature resistance and can meet the application requirements of various fields such as industrial RF communication and testing.
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This high-performanceWideband Plane Spiral AntennaArray ZD201804 is a professional RF antenna dedicated to2-18GHzultra-broad frequency applications, integrating the core advantages ofWidebandcommunication andPlane Spiral Antennastructural design. Covering the full2-18GHzfrequency range, it adopts right-handed circular polarization, with typical VSWR ≤2.5, back lobe ≤10dB and graded gain performance: ≥-7dBi@2GHz, ≥-2dBi@3GHz, ≥1dBi@4GHz+, and peak 4.5dBi@9/10GHz, ensuring stable signal for the whole2-18GHzband. As a high-qualityPlane Spiral Antenna, it features ≥90° wide beam width across all frequencies with graded absolute gain indicators, expanding signal coverage forWidebanduse scenarios. Made of Alufer cavity and stainless steel SMA-50K connector, this2-18GHz Wideband Plane Spiral Antennais compact (≤55×55×40mm, excl. connectors) and lightweight (≤50g), easy for installation and integration. With industrial-grade temperature resistance (-50℃~+70℃ working, -50℃~+65℃ storage), this2-18GHz Plane Spiral Antennahas strong environmental adaptability, ideal for professional RF testing, industrial communication and otherWidebandRF system deployments.

 FrequencyRange

2-18GHz

StandingWave

≤2.5(typical value)

Polarization Method

Right-handed circular polarization

Gain

 (Beam Center)

≥-7dBi@2GHz or higher;

≥-2dBi@3GHz or higher;

≥1 dBi at frequencies above 4 GHz;

≥4.5dBi@9GHz10GHz;

Back Lobe

≤10dB

Antenna Cavity Material

Alufer

BeamWidth

≥90@2GHz and above (absolute gain ≥-10dBi with beam width);

≥90°@3GHz or higher (absolute gain ≥-5dBi beam width);

≥90°@4GHz and above (absolute gain ≥-4dBi beam width);

≥90°@9GHz, 10GHz (absolute gain ≥-1.5dBi beam width)

Joggle

SMA-50K (stainless steel)

 Weight

≤50g

Antenna Size

≤L55mm × W55mm × H40mm (excluding connectors)

 Working Temperature

-50℃~+70℃

Storage Temperature

-50℃~+65℃