Siretta Echo 1A

GSM/GPRS, 3G & ISM PCB Antenna

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Key Features
  • Quad band GSM & 3G Antenna
  • Improved replacement for the Echo1 range
  • 35mm x 6mm x 0.6mm PCB
  • Internal Mount

The Echo 1A is a GSM, 3G & ISM tuned PCB antenna and is an improvement on the old Echo1 range. The Echo1A sets the bench mark high with an impressive level of performance across all the frequencies despite being an extremely compact antenna solution. With a miniature footprint size of 35 x 6mm, the Echo 1A is perfect for applications where internal space for components is limited or when using an external antenna is simply not appropriate. Its miniature design allows this antenna to be fixed to the inside of an enclosure or directly onto a PCB with little hassle. Common applications for this embedded antenna include: waterproof / water tight designs, portable solutions and general GSM applications that require a compact invention.

The Echo 1A is quad band GSM / GPRS, 3G / UMTS & ISM tuned antenna, designed to resonate to a high level at ISM 868MHz and 915MHz; GSM 850, 900, 1800, 1900 and 3G 2100MHz. This PCB antenna manages a peak gain of 3.5dBi at 2100MHz (3G) so is therefore a high performance, wide frequency band antenna, suitable for a host of wireless M2M applications that require an embedded solution. Its wide operating frequency band allows for worldwide cellular applications over the quad band GSM/GPRS networks and also high data transfer rates via 3G/UMTS.

The Echo 1A is supplied with a variety of cable lengths and connector types to help meet your needs with an ‘off-the-shelf’ product. Options include:

  • 100mm 1.13mm coax cable with IPEX connector
  • 100mm 1.13mm coax cable with GSC connector
  • 200mm 1.13mm coax cable with IPEX connector
  • 200mm 1.13mm coax cable with GSC connector


Custom cable lengths and connector types can be supplied for volume requirements.


Echo 1A Key Specifications - Electrical

Temperature range: -40 to +85°C
Impedance: 50 ohm
VSWR: <2.0:1
Operating frequences: GSM / GPRS: 850, 900MHz
1800 - 1900MHz
3G: 2.1GHz
ISM: 868, 915MHz
Polarization: Vertical
Radiating element: 1/4 wave dipole
Gains: -0.4dBi @ 868MHz -0.8dBi @ 915MHz
-1.95dBi @ 850MHz
-0.92dBi @ 900MHz
0.78dBi @ 1800MHz
1.13dBi @ 1900MHz
3.66dBi @ 2100MHz

Echo 1A Key Specifications - Mechanical

Dimensions: 35mm x 6mm x 0.6mm (without cable)
Mounting method: adhesive
Mounting method: Cable type: 0.81mm
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