Planar Array Active Antennas for Mobile Terminals

STATUS | Completed
STATUS DATE | 20/12/2014
ACTIVITY CODE |
Planar Array Active Antennas for Mobile Terminals

Objectives

The overall objective of this activity was the study of different approaches that would allow the implementation of low cost phased array for mobile terminals.

The antenna has been designed to work in Ku band and is able to handle receiving and transmitting functions and electronically steer the beam.

When compared to examples existing in the literature, the antenna is characterized by the integration of the radiating aperture and of all the RF active components into a single planar horizontal board. In this way it is possible to avoid complex mechanical structures, usually demanding in terms of assembling and maintenance.



The proposed solution fulfils the requirements for typical mobile SatCom applications in terms of performances, applicability and market acceptance.

Challenges

The main challenges tackled in this activity have been the following:

  • Tx and RX capabilities in a single aperture and in separate apertures (latter covered in a CCN)
  • Limited available space for mounting components behind each element
  • Reduction of the antenna cost
  • Minimisation of antenna thickness and weight
  • Heat dissipation control
  • Build up complexity
  • Limiting of the DC required power
  • Limiting the Dc power to be dissipated and find a smart solution for the heat path.

Plan

The review of all possible configurations and technologies relevant to the tackled array antenna design has been carried on.

After the initial review of the requirements and the possible configuration and relevant technologies, a trade –off design based on antenna cost, dimensions and weight, has been presented.

A detailed analysis and design of the chosen configuration has been then realized. The project has been concluded by indicated the next steps to be performed to bring the design to a product level.

Current Status

The project has been successfully finished.