Dipole antennas on photonic band-gap crystals?Experiment and simulation

Sigalas, M. M.; Biswas, Rana; Li, Q.; Crouch, David D.; Leung, Wai‐Yee; Jacobs-Woodbury, R.; Lough, Brian; Nielsen, Sam; McCalmont, S.; Tuttle, G.; Ho, Kai Ming

doi:10.1002/(sici)1098-2760(19970620)15:3<153::aid-mop10>3.0.co;2-8

Cited by 62 publications

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“…7 Among these applications, there is a great deal of growing interest for photonic crystal-based antennas. 8,9 The reported experimental and theoretical studies on the antenna applications mostly made use of the total reflection property of photonic crystals. The antennas mounted on photonic crystal substrate surfaces exhibited high efficiency and directivity compared to conventional antennas on dielectric substrates.…”

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confidence: 99%

“…Antenna radiation patterns were simulated with the widely used finite-difference-time-domain ͑FDTD͒ technique. 9 To reduce the FDTD computational space, a short dipole antenna was used in the simulations which should approximate well the monopole antenna. The time dependent Maxwell's equations were numerically integrated with the fixed frequency dipole source inside the defect volume of the photonic crystal, to obtain the far-field radiation pattern.…”

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Photonic crystal-based resonant antenna with a very high directivity

Temelkuran

Bayındır

Özbay

et al. 2000

Journal of Applied Physics

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177

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We investigate the radiation properties of an antenna that was formed by a hybrid combination of a monopole radiation source and a cavity built around a dielectric layer-by-layer three-dimensional photonic crystal. We measured a maximum directivity of 310, and a power enhancement of 180 at the resonant frequency of the cavity. We observed that the antenna has a narrow bandwidth determined by the cavity, where the resonant frequency can be tuned within the band gap of the photonic crystal. The measured radiation patterns agree well with our theoretical results. © 2000 American Institute of Physics. ͓S0021-8979͑00͒03601-X͔ Photonic crystals, in which electromagnetic ͑EM͒ wave propagation is forbidden in all directions for a certain range of frequencies, have a wide range of applications extending from microwave to optical frequencies. 1-3 However, the fabrication of photonic crystals at optical frequencies was a major challenge since the invention of these materials nearly a decade ago. Recently, a photonic crystal with a full threedimensional ͑3D͒ band gap at 1.55 m wavelength was reported by Fleming and Lin. 4 In addition to this major breakthrough, the same structure was previously fabricated at millimeter wave and microwave frequencies, 5,6 where a number of photonic crystal based applications were demonstrated. 7 Among these applications, there is a great deal of growing interest for photonic crystal-based antennas. 8,9 The reported experimental and theoretical studies on the antenna applications mostly made use of the total reflection property of photonic crystals. The antennas mounted on photonic crystal substrate surfaces exhibited high efficiency and directivity compared to conventional antennas on dielectric substrates. 10 Although high directivities which could be achieved using array antennas on photonic crystals were suggested, 11 the maximum directivity that was demonstrated by Brown and McMahon using a photonic crystal-based single dipole antenna was 10, along with a radiative gain of 8. 10 One other important property of photonic crystals is that by breaking the periodicity of the crystal, one can create resonant cavities. Resonant cavity enhanced detectors 12 and waveguide applications 13 were recently demonstrated using localized modes of the cavities built around photonic crystals. In this letter, we report a photonic crystal-based resonant antenna with a very high directivity and gain. The antenna was formed by a hybrid combination of a monopole radiation source and a cavity built around a dielectric 3D layer-by-layer photonic crystal.The layer-by-layer dielectric photonic crystal we used in our experiments was designed to have a three-dimensional band gap with a midgap frequency around 12 GHz. 13 We used the output port of a microwave network analyzer and a monopole antenna to obtain EM waves. The monopole antenna was constructed by removing the shield around one end of a microwave coaxial cable. The cleaved center conductor, which also acted as the radiation source, was 6 mm long. The chosen ...

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confidence: 99%

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confidence: 99%

Photonic crystal-based resonant antenna with a very high directivity

Temelkuran

Bayındır

Özbay

et al. 2000

Journal of Applied Physics

Self Cite

177

107

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“…Among the most important applications of photonic crystals, there is a great deal of growing interest for photonic crystal-based antennas [42,43]. In microwave and millimeter-wave integrated circuits, the control of the radiation from a dipole antenna is of great importance.…”

Section: Highly Directional Resonant Antennasmentioning

confidence: 99%

“…Antenna radiation patterns were simulated with the widely used finite-difference-time-domain (FDTD) technique [43]. To reduce the FDTD computational space, a short dipole antenna was used in the simulations which should approximate well the monopole antenna.…”

Section: Highly Directional Resonant Antennasmentioning

confidence: 99%

Microwave Applications of Photonic Crystals

Özbay¹,

Temelkuran²,

Bayındır³

2003

PIER

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Abstract-We have demonstrated guiding and bending of electromagnetic (EM) waves in planar and coupled-cavity waveguides built around three-dimensional layer-by-layer photonic crystals. We observed full transmission of the EM waves through these waveguide structures. The dispersion relations obtained from the experiments were in good agreement with the predictions of our waveguide models. We also reported a resonant cavity enhanced (RCE) effect by placing microwave detectors in defect structures. A power enhancement factor of 3450 was measured for planar cavity structures. Similar defects were used to achieve highly directional patterns from monopole antennas.

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“…Among them, a special attention has been paid to the use of the photonic crystals as plane reflecting devices for antennas, able to eliminate the well known drawbacks of a conducting ground plane. In that case, it has been demonstrated that the improvements come from a tunable phase shift for the reflected waves, and from the ability of this structure to prevent the propagation of surface waves [1][2][3][4][5][6][7]. A second direction of research deals with the use of resonant cavities (or defects in the photonic crystal) to reduce the angular range of the emitted field [8,9].…”

Section: Introductionmentioning

confidence: 99%

Dispersion Diagrams of Bloch Modes Applied to the Design of Directive Sources

Enoch¹,

Tayeb²,

Maystre³

2003

PIER

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Abstract-We present an original study which makes use of a convenient representation of the dispersion diagrams of Bloch modes for the design of angular selective sources. These diagrams provide us all the pertinent information about the radiative properties of the photonic crystal, and a guideline to optimize the structure in order to obtain the suitable properties. We apply these tools in two cases: when the radiated field propagates normally to the device, and also for an off-axis radiating device. Several numerical examples obtained from a rigorous numerical method show the relevance of this approach.

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Dipole antennas on photonic band-gap crystals?Experiment and simulation

Cited by 62 publications

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Photonic crystal-based resonant antenna with a very high directivity

Photonic crystal-based resonant antenna with a very high directivity

Microwave Applications of Photonic Crystals

Dispersion Diagrams of Bloch Modes Applied to the Design of Directive Sources

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