2000–2400 MHz 2 dBi Omni Whip Antenna, SMA-Male, EX20213

A small terminal has to put an antenna outside its case, and a 140 mm whip is about all the space the housing allows. The 2 GHz range carries LTE, 2.3 GHz band radio and 2.4 GHz WiFi, and the demand for a small omni that covers that spread has never been higher. Designers are constantly challenged to keep the link alive when the antenna sits at the back of a plastic box, next to a battery and a metal frame. The solution lies in a slim whip with a copper tube element. We are proud to introduce the 2000–2400 MHz 2 dBi Omni Whip Antenna, model EX20213, a φ13×140 mm black whip with an SMA plug.

This part answers a compact terminal requirement. The band is written as 2000–2400 MHz in the specification table, and the measured data covers 2200–2400 MHz. Gain is 2 dBi with a 360° horizontal pattern and ±2 dB ovality, so the link holds as the terminal is turned. Polarization is vertical, impedance is 50 Ohm, VSWR is ≤1.92, and maximum power is 50 W. The element is a copper tube, which is the honest choice for a slim whip: copper gives a stable match in a small diameter and does not drift with a plastic former. The body is φ13×140 mm and weighs 0.02 kg, the connector is an SMA plug on an RG178 cable, the element is DC grounded, and the range is −40 °C to 55 °C.

Technical Excellence: The Core Advantage

The antenna works on three points: 2 dBi in a 140 mm height, a copper tube element with a round pattern, and a small body that mounts on a terminal.

2 dBi in a 140 mm Whip

The whip is 140 mm long and 13 mm across, and it delivers 2 dBi. That is enough for a terminal that talks to an access point in the same building, and it does it without a ground plane the size of a dinner plate. The horizontal pattern is 360°, so the terminal does not have to be pointed, and ovality is ±2 dB, so the pattern stays round as the device is set down on a desk or hung on a wall.

A Copper Tube Element with High Efficiency

The radiating element is a copper tube, not a printed trace on plastic. Copper carries current with low loss, so the measured efficiency runs 85.7% to 89.7% across 2200–2400 MHz, which is high for a whip this small. The measured peak gain runs 1.52 to 2.51 dBi across the same band, and the measured VSWR is 1.52 at 2.2 GHz and 1.47 at 2.4 GHz. High efficiency matters on a terminal because a lossy antenna steals both transmit power and receive sensitivity, and a small device has no power to spare.

A φ13 mm Body with an SMA Plug

The body is φ13×140 mm and weighs 0.02 kg, so it adds nothing to a terminal in space or mass. The feed is RG178 cable with an SMA plug, the standard small interface on LTE modules, WiFi gateways and test boxes. Maximum power is 50 W, the element is DC grounded, and the range is −40 °C to 55 °C. The datasheet drawing shows both a straight body at 140 mm and a right-angle body at 117 mm, so the same part can stand up from a panel or turn along a case edge. Packing is 1 pcs per bag and 20 pcs per bag, and the part is RoHS compliant.

Versatile Application Scenarios

Two dBi, a 360° pattern and a 140 mm body make this whip useful wherever a terminal needs a small antenna on 2–2.4 GHz.

LTE and 2.3 GHz Terminals

LTE terminals and CPE: the 2 dBi whip covers the 2 GHz LTE range on a small box, and the vertical polarization matches the sector antenna on the other end.

2.3 GHz band radios: the measured band runs to 2400 MHz, so a 2300 MHz terminal works on the same part.

WiFi and IoT Gateways

2.4 GHz WiFi gateways: the 360° pattern means the gateway does not have to be aimed, and the copper element keeps efficiency high.

IoT and telemetry units: 0.02 kg and φ13 mm leave the enclosure free for the battery and the board.

Test, Measurement and Portable Devices

Test boxes and bench setups: an SMA plug and a 140 mm body suit a bench instrument that needs a quick antenna swap.

Portable terminals and handhelds: the straight and right-angle bodies let the antenna stand up or lie along the case.

Conclusion: A Small Whip That Holds the Link

The 2000–2400 MHz 2 dBi Omni Whip Antenna, EX20213, does one job: it gives a small terminal a real antenna on 2–2.4 GHz. The φ13×140 mm black body carries a copper tube element with 2 dBi, a 360° pattern and ±2 dB ovality, VSWR ≤1.92 at 50 Ohm and 50 W, an SMA plug on RG178 cable, and DC grounding. Measured efficiency runs 85.7% to 89.7% across 2200–2400 MHz, and measured VSWR is 1.52 at 2.2 GHz and 1.47 at 2.4 GHz. The 0.02 kg weight, −40 °C to 55 °C range and straight or right-angle body state its limits up front. For a compact 2 GHz terminal that needs a slim omni, this whip is the practical choice.