On the Development of a Lens Phased-Array at 100GHz

Title

On the Development of a Lens Phased-Array at 100GHz

 Author

van Rooijen, Nick (TU Delft Electrical Engineering, Mathematics and Computer Science; TU Delft Microelectronics)

Contributor

Alonso Del Pino, M. (mentor)
Bosma, S. (mentor) ORCID 0000-0001-7143-2714
Llombart, Nuria (graduation committee) ORCID 0000-0002-9540-3552
Spirito, M. (graduation committee)
Neto, A. (graduation committee) ORCID 0000-0003-4015-2167

 Degree granting institution

Delft University of Technology

 Programme

Electrical Engineering | Microelectronics

 Date

2021-06-23

 Abstract

This thesis is concerned with a first time demonstration of a high frequency scanning lens phased­-array with dynamic steering. Such phased­-array could provide the high gain, wide bandwidth, and steering capability that the next generation of wireless ap­plications requires. The phased-­array development was divided into three distinct parts. First, the electronic phase steering system was discussed and developed, and its stability was characterized over time. Results obtained over 24 hours indicated that the system would be stable to within 6° of high frequency output phase. The drifts in output amplitude remained to within 0.3dB. Next, the lens antenna elements were developed with a novel corrugated leaky ­wave feed that provides very high and broadband aperture efficiency. Antenna measurements have validated its ability to be a very aperture efficient radiator (>80%) with wide bandwidth (1:2). Scanning measurements have shown a 3dB scan loss at around 15°. Finally, the phase steer­ing and antenna elements were combined into a 4×1 array concept. Its behaviour was simulated and indicated again good performance with wide bandwidth (1:2) and high directivity (31.5dBi). Simulated scan loss was approximately 3dB at 20°. The amplitude and phase errors resulted in a SLL standard deviation of 0.63dB. The array prototype is currently awaiting completion of fabrication by DEMO at the TU Delft.

 Subject

phased-array
high frequency
leaky lens
sub-mm
antenna
scanning
WR-10

 To reference this document use:

http://resolver.tudelft.nl/uuid:cc2aa8a2-b0ce-4391-a5ac-bb5e282131dd

 Embargo date

2022-12-16

 Part of collection

Student theses

 Document type

master thesis

 Rights

© 2021 Nick van Rooijen
Files
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