4x4 planar array antenna on indium phosphide substrate for 0.3-THz band application

Kanaya, Haruichi; Koga, Masahiko; Tsugami, Kota; Eu, Guan Chai; Kato, Kazutoshi

doi:10.1117/12.2248859

Cited by 7 publications

(4 citation statements)

References 9 publications

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“…Some tunable THz sources such as the wide tunable terahertz phase modulation with gate‐controlled graphene metasurface is given in Miao et al 8 A hybrid graphene‐metal structure‐based tunable terahertz antenna with waveguide‐fed technique is discussed in Hosseininejad and Komjani 9 . Rectangular microstrip patch antenna for operating in THz band on polyimide substrate for defense applications is discussed in Dhillon et al 10 The design of the miniaturized on‐chip slot antenna for THz detector in CMOS is discussed in Xu et al 11 A 4 × 4 array antenna for THz band on the indium phosphide substrate is discussed in Kanaya et al 12 A hybrid slot waveguide and a bowtie antenna for wave detection in THz band are proposed in Zhang et al 13 Ultrawideband elliptical microstrip antenna for terahertz applications is discussed in Singhal 14 . Terahertz corrugated horns operate in 1.25–1.57 THz along with its design, Gaussian modeling, and measurements 15 .…”

Section: Introductionmentioning

confidence: 99%

Gain improvement of THz antenna using semicircular slot and modified ground plane

Aathmanesan

2022

Int J Communication

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Summary In this paper, gain improvement and impedance matching of THz patch antenna by using semicircular slot and modified ground plane are discussed. The proposed antenna consists of a simple rectangular patch configuration. The novelty of the proposed antenna is its semicircular slot, and modified ground structures are used to enhance the gain and impedance matching of the proposed antenna. Design evolution along with parametric studies is also offered in this paper along with the return loss comparisons. Surface current distributions that are presented for the validation of proposed antenna's operation are controlled by the slots. The effect of slots on performance of the proposed antenna is also offered in this paper. The proposed antenna is designed and simulated on CST software. The proposed antenna occupies a compact area of 100 × 150 × 10 μm3, which in terms of wavelength can be given by 0.33 λ0× 0.5 λ0× 0.03 λ0, where 0.25emλ00.25em is the free space wavelength at 1 THz. The proposed antenna has a resonant frequency of 1 THz with a realized peak gain of 8.87 dBi and efficiency of 87%, respectively. The proposed antenna can be a suitable candidate for 1‐THz applications.

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Section: Introductionmentioning

confidence: 99%

Gain improvement of THz antenna using semicircular slot and modified ground plane

Aathmanesan

2022

Int J Communication

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“…The InP has an isotropic etching profile, making it challenging to realise waveguiding structures involving via through holes. These design bottlenecks can be overcome by resorting to an alternative technique of depositing a thin film of a material having a lower relative dielectric constant over a ground plane that provides shielding to the InP substrate [18]. This superficial layer can be used to realise planar arrays by capacitively feeding the radiating elements.…”

Section: Introductionmentioning

confidence: 99%

“…This superficial layer can be used to realise planar arrays by capacitively feeding the radiating elements. Previously reported planar arrays [17,18] were designed for an input impedance of 50 Ω, which is not typically the case for on-chip photodiodes.…”

Section: Introductionmentioning

confidence: 99%

Wide Scanning Angle Millimetre Wave 1 × 4 Planar Antenna Array on InP at 300 GHz

2021

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The design of a uniformly spaced 1 × 4 linear antenna array using epitaxial layers of benzocyclobutene over an InP substrate is demonstrated. The array elements are conjugately matched with a uni-travelling carrier photodiode at the input. The phased array is optimised to counteract mutual coupling effects by introducing metal strips with isolated ground planes for each radiating element. The proposed antenna array can provide a gain of 10 dBi with a gain variation of ±3 dB. The array operates over a bandwidth of 10 GHz (295–305 GHz) with a wide scanning angle of 100° in the broadside.

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“…The patch antenna, which stops electromagnetic waves from passing through the substrate by establishing a barrier at specific terahertz (THz) frequencies, has been designed using unique substrate architectures and materials. [15] The 4 × 4 planar array antenna for the terahertz band was also proposed in Reference [16] and achieved a directional gain of 11.7 dBi at 300 GHz. Amazingly, contrary to the explanation above, a thicker dielectric substrate and a larger ground plane were thought to provide an alternative; however, they suffer from surface wave losses in the pursuit of highperformance microstrip antennas.…”

mentioning

confidence: 99%

Gain Enhancement of Composite Photonic Crystal Microstrip Patch Antenna Inspired by Maxwell Garnett Model for C‐Band, X‐Band and Ku Band Applications

Mercy,

Wilson

2023

Cryst. Res. Technol.

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The latest developments in communication systems require an economical, light‐weight, compact size, and excellent performance in microstrip patch antennas in order to meet the requirements of the upcoming implementation. The optical, electrical, and physical properties of different materials have an impact on the design of antennas. An innovative composite photonic crystal microstrip patch antenna with outstanding gain has been developed. For composites of fumed silica embedded in RT‐Duroid dielectric material, the effective permittivity is calculated using the Maxwell‐Garnett model. The performance of composite antennas for different volume fractions and various dielectric substrate thicknesses is studied. The resonance frequencies of composites also shift from the X‐band to the C‐band with an increase in volume concentration, which is suitable for wireless communication systems. This investigation provides a perspective on how composite substrates can represent a communication revolution by providing an alternative to substrates that are readily accessible commercially in situations when the material qualities are insufficient. The photonic crystal composite antenna records the highest gain of 13.89 dB with the coverage of C‐band, X‐band, and Ku‐band, whereas the composite antenna reaches the best gain of 10 dB with the coverage of C‐band and X‐band.

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4x4 planar array antenna on indium phosphide substrate for 0.3-THz band application

Cited by 7 publications

References 9 publications

Gain improvement of THz antenna using semicircular slot and modified ground plane

Gain improvement of THz antenna using semicircular slot and modified ground plane

Wide Scanning Angle Millimetre Wave 1 × 4 Planar Antenna Array on InP at 300 GHz

Gain Enhancement of Composite Photonic Crystal Microstrip Patch Antenna Inspired by Maxwell Garnett Model for C‐Band, X‐Band and Ku Band Applications

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