EMC broadband source covers 1 GHz to 40 GHz

August 18, 2014 // By Jean-Pierre Joosting
Heuermann HF-Technik GmbH offers a second generation broadband test-transmitter based on an improved comb generator and a broadband antenna.

The SG-CG2 wideband comb generators were developed for quick microwave receiving equipment test under various conditions. Quick and simple usage was one of the primary design goals. The SG-CG2 transmitters generate a crystal referenced fundamental frequency of 1.00 GHz and generate harmonics on whole-number multiples of the fundamental, up to 40 GHz and beyond, via non-linear elements. The generated frequency comb is then radiated by an internal wideband microwave antenna with an antenna gain of 0 dBi.

Typical power output spectrum of SG-CG2, measured at the internal antenna input, frequency range DC to 44 GHz. Click image to enlarge.

An internal wideband antenna increases ruggedness as no external precision microwave connectors are necessary. Other features include a stand alone system with internal 9 V battery holder or external DC supply possible; compact and rugged case, ideal for portable and field use; and internal low noise oscillator and high power comb oscillator.

Applications include EMC-test in the GHz-range; free space antenna tests and antenna measurements; rapid test of measurement equipment such as spectrum analyzers; EMC source and EMC shielding tests; rapid test of wideband receivers as well as broad band test equipment, microwave RX intermodulation tests, and interference emission location and direction finding training.