scholarly journals Photonic microwave and RF programmable true time delays for phased array antennas using a soliton crystal Kerr micro-comb source

2021 ◽  
Author(s):  
David Moss
Keyword(s):  
Time Delays ◽  
Phased Array ◽  
Frequency Comb ◽  
Free Spectral Range ◽  
Beam Steering ◽  
High Angular Resolution ◽  
Phased Array Antenna ◽  
Tunable Range ◽  
Large Channel ◽  
True Time

Abstract We demonstrate significantly improved performance of a microwave true time delay line based on an integrated optical frequency comb source. The broadband micro-comb (over 100 nm wide) features a record low free spectral range of 49GHz, resulting in an unprecedented record high channel number (81 over the C band) – the highest number of channels for an integrated comb source used for microwave signal processing. We theoretically analyze the performance of a phased array antenna and show that this large channel count results in a high angular resolution and wide beam steering tunable range. This demonstrates the feasibility of our approach as a competitive solution towards implementing integrated photonic true time delays in radar and communications systems.

scholarly journals ANZOP ACOFT Melb 2019 true time delay

2020 ◽  
Author(s):  
David Moss
Keyword(s):  
Time Delay ◽  
Delay Line ◽  
Free Spectral Range ◽  
Beam Steering ◽  
Phased Array Antenna ◽  
Microwave Photonic ◽  
Tunable Range ◽  
True Time Delay ◽  
Large Channel ◽  
True Time

A microwave photonic true time delay line based on an integrated Kerr comb source with 49 GHz free spectral range was proposed and demonstrated. We theoretically analyze the performance of a phased array antenna and show that this large channel count results in a highangular resolution and wide beam-steering tunable range.

Photonics-enabled Millimetre-wave Phased-Array Antenna with True Time Delay Beam-steering

2021 ◽  
Author(s):  
Muhsin Ali ◽  
Robinson Cruzoe-Guzman ◽  
Luis Enrique Garcia-Munoz ◽  
Frederic van Dijk ◽  
Guillermo Carpintero
Keyword(s):  
Time Delay ◽  
Phased Array ◽  
Beam Steering ◽  
Array Antenna ◽  
Phased Array Antenna ◽  
Millimetre Wave ◽  
True Time Delay ◽  
True Time

Simultaneous beam steering of multiple signals based on optical wavelength-selective switch

2015 ◽  
Vol 7 (3-4) ◽  
pp. 391-398
Author(s):  
Giovanni Serafino ◽  
Antonio Malacarne ◽  
Claudio Porzi ◽  
Paolo Ghelfi ◽  
Marco Presi ◽  
...  
Keyword(s):  
Integrated Circuits ◽  
Integrated Circuit ◽  
Phase Shifter ◽  
Phased Array ◽  
Beam Steering ◽  
Array Antenna ◽  
Ring Resonators ◽  
Antenna Element ◽  
Phased Array Antenna ◽  
Wavelength Selective Switch

A novel, photonics-based scheme for the independent and simultaneous beam steering of multiple radio frequency signals at a wideband phased-array antenna is presented. As a proof of concept, a wavelength-selective switch (WSS) is employed both as a wavelength router to feed multiple antenna elements and as a tunable phase shifter to independently control the phase of each signal at any antenna element. In the experiment, two signals at 12.5 and 37.5 GHz are simultaneously fed to the four output ports of the WSS with independent and tunable phase shifts, emulating the independent steering of two signals in a four-element phased-array antenna. The results confirm the precision and flexibility of the proposed scheme, which can be realized both with bulk components or resorting to photonic integrated circuits, especially for wide-band applications. The architecture for a possible integrated implementation of the proposed solution is presented, employing a structure based on micro-ring resonator. Starting from these results, the feasibility of an integrated version of the presented architecture is also considered. The proposed photonic integrated circuit realizing the beam-forming network might be based on tunable true-time delay, as well as on phase shift through micro-ring resonators, and could be conveniently implemented with CMOS-compatible silicon technology.

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