Quarterwave Delta E1 multi purpose PCB antennas is efficiently tuned and designed to work with a wide variety of M2M frequencies covering quad band cellular, 3G and coming 4G as well as 2.4GHz ISM band channels. 

The Delta E1 is groundplane independent and has a small footprint which is ideal for applications where a small size is important and for discrete covert applications. There are many options available for the connectors and cable length. 

The Delta E1 measures just 35mm by 6mm and has proven performance in the field.