Digitally controlled microstrip phased array.

Adaptive phased arrays are versatile sensors which adjust themselves automatically and electronically to meet particular constraints. Such a constraint might be to minimise the level of interference or to enhance the desired signals or both simultaneously. This enhanced system performance. These arrays have received considerable attention and development in many applications such as broadcasting, radar and communications. The core of this adaptive phased array system is the phased array. In this thesis, a digitally controlled microstrip phased array is discussed and built. This phased array consists of three parts: firstly, eight stripline 3-bit-PIN diodes-controlled hybrid ring coupled phase shifters, secondly, an equi-spaced half-wavelenth linear array of 8 square microstrip patch antennas and lastly, a stripline 8-way hybrid ring reactive corporate feed. A simple photo-etching technique was used to fabricate the phase shifters, the array and the feed on teflon fibreglass substrate. The individual parts of the phased array was tested and found to perform well. Finally, the antenna main lobe of the phased array was successfully steered by manual control of the phase shifters and thus proved its capability for a fully adaptive phased array system.

Grantor dc:publisher

UNSW, Sydney

Year dc:date

1981

Author dc:creator

• Wee, Chiew Beng

• Phased array antennas.

Statement dc:rights

• open access
• CC BY-NC-ND 3.0
• free_to_read

Licence

• https://purl.org/coar/access_right/c_abf2
• https://creativecommons.org/licenses/by-nc-nd/3.0/au/

Language dc:language

EN

Identifier

https://doi.org/10.26190/unsworks/5230

OAI identifier oai:identifier

oai:unsworks.library.unsw.edu.au:1959.4/56744