Plasma antennas do apply plasma discharges either
as an Electromagnetic reflector or as radiating elements,
and introduce reconfigurable capabilities that are not achievable
by conventional antennas
Plasma antennas do apply plasma discharges either as an Electromagnetic reflector or as radiating elements, and introduce reconfigurable capabilities that are not achievable by conventional antennas.
A plasma can afford multi-beam operation, beam-steering, and better directivity without any mechanical element
Gain can be electronically controlled
The antenna can operate at multiple frequencies by changing plasma parameters.
A plasma reflector can be exploited to reduce sensitivity to Omni directional jamming
Plasma antennas are mainly composed by dielectric part, when they are turned off the radar cross section drastically reduces.
Telecommunication, navigation in the L band.
Numerical code able to simulate a plasma antenna elements have been implemented and validated. An antenna mock-up has been manufactured and tested both in open field and in anechoic chamber. Current TRL is 4.
An internal development is currently ongoing to target TRL 5.
Researches on plasma antennas started in 2012 exploiting competences matured in the development of plasma thrusters. We firstly developed code suitable to simulate wave propagation within plasma elements and antenna coupling. We designed and developed several prototypes, which, after having overcome several criticalities due to power coupled to plasma, have been successfully tested in an open field and on an anechoic chamber. Experimental results match very well numerical results.
10+ years of experience
FULL PROCESS SERVICES
The research and development took place through
different research internal and external programs as:
Paladin funded by EC and
coordinated by Alma-Sistemi.
Starlet funded by ASI
and coordinated by Elital.
We carry out research and development activities
through a combined numerical/experimental investigation.
We design, develop and test different antenna configurations in the UHF frequency band.
We apply numerical code to optimize antenna performances.
We have expertise in characterizing the scattering parameters of plasma antennas by means of VNA, the transmitted/received fields by means of open field and anechoic chamber measurements.
Plasma antennas do apply plasma elements to interact with the electromagnetic field to obtain unconventional effects. We developed two types of antennas. The first is a plasma reflector antenna that is able to electronically focus and steer the beam of an intrinsically-omnidirectional feed. The second is a plasma dipole in the UHF band.
Plasma technology enables antenna steering.
Broad frequency range
Changes in plasma elements density allow the antenna to operate within a rather broad frequency band width.
Variable radar cross section
Once plasma is turned off the radar cross section of the system becomes very small.