Optical True Time-Delay for Two-Dimensional $X$-Band Phased Array Antennas

Jung, Byung-Min; Shin, Jong‐Dug; Kim, Boo-Gyoun

doi:10.1109/lpt.2007.897530

Cited by 53 publications

(23 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The techniques other than these are based on optical phase shifters [9], switchable delay matrices [10][11][12][13][14], liquid crystal polarization switching devices [15], a combination of a wavelength-tunable laser and a dispersive optical element, such as a high dispersion fiber [16,17], a fiber optic prism [18,19], a fiber Bragg gratings (FBGs) prism [20][21][22], or chirped FBGs [23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Photonic True-Time Delay for Phased-Array Antenna System using Dispersion Compensating Module and a Multiwavelength Fiber Laser

Jeon¹,

Lee²

2014

Journal of the Optical Society of Korea

View full text Add to dashboard Cite

An optical true-time delay beam-forming system using a tunable dispersion compensating module (DCM) for dense-wavelength division modulation (DWDM) and a multiwavelength fiber ring laser for a phased array antenna is proposed. The multiwavelength fiber ring laser has one output that includes four wavelengths; and four outputs that include only single-wavelength. The advantage of such a multiwavelength fiber ring laser is that it minimizes the number of devices in the phased array antenna system. The time delays according to wavelengths, which are assigned for each antenna element, are obtained from the tunable DCM. The tunable DCM based on a temperature adjustable Fabry-Perot etalon is used. As an experimental result, a DCM could be used to obtain the change of the beam angle by adjusting the dispersion value of the DCM at the fixed lasing wavelengths of the fiber ring laser in the proposed optical true-time delay.

show abstract

Section: Introductionmentioning

confidence: 99%

Photonic True-Time Delay for Phased-Array Antenna System using Dispersion Compensating Module and a Multiwavelength Fiber Laser

Jeon¹,

Lee²

2014

Journal of the Optical Society of Korea

View full text Add to dashboard Cite

show abstract

“…The VPVL approach allows the continuous beam-steering. Recent examples of photonic TTD control can be found in [18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

The Design of an Optical Time Steered Antenna Based on a New Integrated True Time Delay Unit

Capozzoli¹,

Curcio²,

D’Elia³

2013

PIER

View full text Add to dashboard Cite

Abstract-In the framework of wide-band and ultra wide-band array antennas, an Optical Time Steered Antenna (OTSA) is presented, by considering the design strategies of a new True Time Delay (TTD) Control Unit in the Beam Forming Network (BFN). The unit has high reliability, low crosstalk, low switching time and potential low cost, being based on a low cost technology. Furthermore, due to its compactness and modularity, it can be easily grouped with other ones to make a control unit of large arrays. Different strategies and working configurations of the TTD control unit are presented as a trade-off among hardware complexity, insertion loss reduction and beam control capability. The design of an OTSA prototype is discussed by considering a realistic model simulating the behavior of a real world antenna and accounting for unavoidable non-realities, such as random, periodic and systematic errors introduced by each device exploited in the OTSA as well as mutual coupling between radiating elements. An optimal trimming strategy, able to compensate at best for BFN errors and based on the use of suitably located trimmers, is presented. Among other cases, to enlighten the potentialities of the OTSA, an all optical architecture providing a difference beam squint free pattern is also proposed.

show abstract

“…Accordingly, wide-band beam-squint-free phased arrays can be realized, as Optical Time-Steered Antennas (OTSA) [2][3][4]. Some of the most recent examples of OTSAs are presented in [5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

“…A SDL network exploits optical or electrical switches to select the delay-line realizing the desired time delay [2,7,13,14]. A classical SDL is the Binary Fiber Optic Delay Line (BiFODeL), exploiting optical switches and fiber segments with lengths progressively increasing by a power of 2 [4].…”

Section: Introductionmentioning

confidence: 99%

A Flexible Integrated Photonic True Time Delay Phaser for Phased Array Antennas

Capozzoli

Curcio²,

D’Elia³

2012

PIER B

View full text Add to dashboard Cite

Abstract-An integrated photonic True Time Delay phaser for phased array, based on an innovative technology, is here presented. The module versatility is showed by presenting more driving strategies matching different antenna features. The phaser insertion loss, the fluctuations of the excitation coefficients corresponding to the various driving configurations and the statistical modeling of the realization defects are also discussed.

show abstract

Optical True Time-Delay for Two-Dimensional $X$-Band Phased Array Antennas

Cited by 53 publications

References 9 publications

Photonic True-Time Delay for Phased-Array Antenna System using Dispersion Compensating Module and a Multiwavelength Fiber Laser

Photonic True-Time Delay for Phased-Array Antenna System using Dispersion Compensating Module and a Multiwavelength Fiber Laser

The Design of an Optical Time Steered Antenna Based on a New Integrated True Time Delay Unit

A Flexible Integrated Photonic True Time Delay Phaser for Phased Array Antennas

Contact Info

Product

Resources

About