Full-Wavelength Dipole Antenna on a Gaas Membrane Covered by a Frequency Selective Surface for a Terahertz Photomixer

Nguyen, Truong Khang; Ho, Thi Anh; Han, Haewook

doi:10.2528/pier12082101

Cited by 16 publications

(9 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Further, an input resistance of ∼ 1.6 kΩ has been reported using a four leaf clover shaped antenna that is backed by an extended hemispherical lens substrate [12]. In addition, an efficient THz dipole has been reported with an input impedance of ∼ 3.88 kΩ in conjunction with an enhanced directivity using either a Silicon lens [13], or a FSS [14]. However, in both of these studies a thin ∼ 12 µm grounded GaAs substrate has been used in conjunction with a cavity that has been created underneath the photomixer leaving an unsupported 1.5 µm layer.…”

Section: Introductionmentioning

confidence: 91%

A Photomixer Driven Terahertz Dipole Antenna With High Input Resistance and Gain

Yin¹,

Kennedy²,

Sarma³

et al. 2015

PIER M

View full text Add to dashboard Cite

Abstract-A terahertz (THz) antenna is proposed that offers high input resistance and gain in the presence of an electrically thick GaAs substrate. The antenna is centrally fed using two vertical probes connected to a photomixer on a thin low temperature grown gallium arsenide (LTG-GaAs) film which is supported by the GaAs substrate. An input impedance of ∼ 3.3 kΩ has been achieved using a dipole antenna that is printed on a thin dielectric slab, and isolated from the supporting substrate using a metal ground plane. A square aperture has been introduced to facilitate the illumination of the photomixer with two laser beams. Furthermore, a frequency selective surface (FSS) has been incorporated in the configuration, which results in a broadside gain of ∼ 19 dBi at a resonance frequency of 0.97 THz.

show abstract

Section: Introductionmentioning

confidence: 91%

A Photomixer Driven Terahertz Dipole Antenna With High Input Resistance and Gain

Yin¹,

Kennedy²,

Sarma³

et al. 2015

PIER M

View full text Add to dashboard Cite

show abstract

“…Although various components have been developed for THz applications [5][6][7][8][9][10][11][12][13][14][15][16][17][18], high power, low cost, and compact THz sources are not readily available [19]. With the rapid advancement of multi-physics based codes, which provide the possibility of simulating the nonlinear beam-wave interaction dynamics [20][21][22][23][24], extending the operating frequency of the existing microwave tube designs [25][26][27][28][29] has become a promising approach for developing compact and powerful THz sources [30][31][32][33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

DESIGN AND 3-D PARTICLE-IN-CELL SIMULATION OF A 140 GHz SPATIAL-HARMONIC MAGNETRON

Esfahani¹,

Tayarani²,

Schunemann³

2013

PIER

View full text Add to dashboard Cite

Abstract-This paper discusses design procedure and 3-D numerical simulation of a 140 GHz spatial-harmonic magnetron (SHM). The well known scaling laws and an approximate approach based on single harmonic analysis are used to determine the interaction space dimensions and the optimum geometrical parameters of the side resonators. Numerical simulations of the SHM were performed using CST-Particle Studio. Since the simulations are not based on artificial RF priming or assuming restrictive assumptions on the mode of operation or on the number of harmonics to be considered, electromagnetic oscillations grow naturally from noise. The presented SHM shows stable operation in the π/2 − 1-mode at 140 GHz over a range of DC anode voltages extending from 11.3 kV to 11.5 kV and for an axial magnetic flux density equal to 0.79 T. Output power of the SHM varies from 2 kW to 11 kW over these voltages with a maximum efficiency of about 6.8%.

show abstract

“…They are generally designed based on integrated circuits (ICs) [15][16][17], low-temperature cofired ceramic (LTCC) [18], micro-machined [7,19,20] or commonly used substrate technologies [5,8,11,14,[21][22][23]. The former two types infuse innovations into the mm-wave antenna technologies, but the latter are still the most popular ways so far for the majority of manufacturers and users due to their low investments on research and development.…”

Section: Introductionmentioning

confidence: 99%

Wideband Millimeter-Wave Cavity-Backed Bowtie Antenna

Qu¹,

Ng²

2013

PIER

View full text Add to dashboard Cite

Abstract-Although many directive antennas operating in a narrow band of millimeter (mm) waves were reported, e.g., antennas for 60-GHz wireless local area network (WLAN), their wideband counterparts are still unpopular. Cavity-backed antennas (CBAs) are widely developed and reported in microwave frequency bands, but handful of literatures can be found about mm-wave CBAs in spite that their many properties are quite suitable for mm-wave applications. This paper presents a wideband unidirectional CBA with a bowtie exciter, operating in a frequency band of 40 ∼ over 75 GHz, and it is carefully analyzed in terms of influences of all components on the radiation patterns, broadside gains, and reflection coefficients of the proposed antenna. Then, the antenna prototype is built by generic printed circuit board (PCB) technologies, and measurements prove the validity of simulations.

show abstract

Full-Wavelength Dipole Antenna on a Gaas Membrane Covered by a Frequency Selective Surface for a Terahertz Photomixer

Cited by 16 publications

References 28 publications

A Photomixer Driven Terahertz Dipole Antenna With High Input Resistance and Gain

A Photomixer Driven Terahertz Dipole Antenna With High Input Resistance and Gain

DESIGN AND 3-D PARTICLE-IN-CELL SIMULATION OF A 140 GHz SPATIAL-HARMONIC MAGNETRON

Wideband Millimeter-Wave Cavity-Backed Bowtie Antenna

Contact Info

Product

Resources

About