1700-1900 2700-2900MHz 2dBi Omni External Rubber Antenna Dual Band Copper Tube SMA Male EX20216

A terminal that has to work on two bands often ends up with two antennas and two connectors. That costs a port, a cable and a hole in the housing. The 1.7–1.9 GHz range carries LTE 1800 traffic, and the 2.7–2.9 GHz range carries broadband and small cell links, and a device that talks on both needs a single part on the case. The solution lies in a dual band rubber antenna with one copper tube element. We are proud to introduce the 1700-1900 2700-2900MHz 2dBi Omni External Rubber Antenna, model EX20216.

This part answers a two band requirement. The low band is 1700–1900 MHz and the high band is 2700–2900 MHz, so the antenna covers two separate stretches of spectrum instead of one wide sweep. 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 body is φ15×150 mm and weighs 0.02 kg, the connector is an SMA-male plug, 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: two bands in one body, a copper tube element with a round pattern, and a small part that mounts on a terminal.

Two Bands in One 150 mm Body

The low band runs 1700–1900 MHz and the high band runs 2700–2900 MHz. One part covers both, so a dual radio terminal needs one connector instead of two. The band edges were measured: VSWR is 1.53 at 1.9 GHz and 1.47 at 2.7 GHz, which is the tightest point of each band, and 1.81 at 2.9 GHz. The 1900–2700 MHz span in the middle is not part of the specification, and this antenna is not the right part for a device that also needs to work there.

A Copper Tube Element with a Round Pattern

The radiating element is a copper tube under a black rubber cover. Copper carries current with low loss, and the rubber housing protects it from weather and handling. The measured total efficiency runs 88.9% at 1.9 GHz down to 62.8% at 2.7 GHz, so the low band is the efficient one and the top of the high band costs some power. The horizontal pattern is 360° with ±2 dB ovality, so the terminal does not have to be aimed and the pattern stays round as the device is set down or mounted.

50 W, DC Ground, SMA-Male

The feed is an SMA-male plug, the standard small interface on LTE modules, CPE and test boxes. Maximum power is 50 W, the element is DC grounded for static protection, and the range is −40 °C to 55 °C. The body is φ15×150 mm and weighs 0.02 kg, so the part adds nothing to a terminal in space or mass. Packing is 1 pcs per bag and 20 pcs per bag, the part is RoHS compliant.

Versatile Application Scenarios

Two dBi, two bands and a 150 mm body make this rubber antenna useful wherever a terminal needs one connector for 1.7–1.9 GHz and 2.7–2.9 GHz.

Dual Band LTE and Broadband Terminals

Dual radio CPE and terminals: one part covers 1800 MHz LTE and the 2.7 GHz link, so the case keeps one antenna hole instead of two.

Small cell and broadband units: the high band runs to 2.9 GHz, which suits a unit that has to cover both a cellular and a broadband radio.

Telemetry and Control Units on Two Bands

Telemetry terminals: the low band carries the control channel and the high band carries the data link, and one part serves both.

Remote monitoring units: the 360° pattern means the box does not have to be aimed at the gateway.

Test, Measurement and Bench Setups

Bench instruments: an SMA-male plug and a 150 mm body suit a test box that needs a quick antenna swap between bands.

Site survey kits: the small body fits a carry case, and one part covers both bands of a dual radio kit.

Conclusion: One Part for Two Bands

The 1700-1900 2700-2900MHz 2dBi Omni External Rubber Antenna, EX20216, does one job: it puts two bands on one connector. The black rubber 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-male plug, and DC grounding. Measured efficiency runs 88.9% at 1.9 GHz to 62.8% at 2.7 GHz, and measured VSWR is 1.53 at 1.9 GHz, 1.47 at 2.7 GHz and 1.81 at 2.9 GHz. The 1900–2700 MHz span in the middle is not covered, and the 0.02 kg weight and −40 °C to 55 °C range state the rest. For a compact terminal that has to work on 1.7–1.9 GHz and 2.7–2.9 GHz at once, this part is the practical answer.