Quasi-optical and spatial power combining

DeLisio, M.P.; York, R.A.

doi:10.1109/22.989975

Cited by 173 publications

(86 citation statements)

References 41 publications

(43 reference statements)

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“…Besides the passive combiner, the spatial power combining has been widely used for RF signals addition in space [3], [4]. Compared to the passive combiner, the spatial power combiner features the advantages of lower loss and less interaction between the amplifiers.…”

Section: Varyingmentioning

confidence: 99%

“…Compared to the passive combiner, the spatial power combiner features the advantages of lower loss and less interaction between the amplifiers. It is especially suitable for multi-source combination at millimeter-wave frequency [3], [4]. However, in the conventional spatial power combiner for linear signal transmission, the linear modulation signal is fed to each antenna, and these signals are combined in space.…”

Section: Varyingmentioning

confidence: 99%

“…Spatial power combiner with antenna array combines power in free-space without loss which occurs in the traditional power combiner, therefore its efficiency is 100% [3]. Spatial power combining is often applied at millimeter-wave frequency due to lack of high power RF devices at this frequency range [3], [4]. Especially with the continually down scaling of CMOS process, spatial power combining provides an effective solution for high power transmission with the low break-down voltage nanometer CMOS circuit, and realizes an antenna-on-chip design [3], [5].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

RF Spatial Modulation Using Antenna Arrays

Zhou

Chia

Qing

et al. 2013

IEEE Trans. Antennas Propagat.

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Abstract-A new method of spatial linear modulation is presented for the RF signal modulation. The constant envelope and phase modulated signals are transmitted to an antenna array and then combined in space; the linear modulation is realized at the same time. The concentric antenna pairs are applied to eliminate the mismatch of phase delay among the modulated signals from different antenna pairs. The measurement results of an RF signal around 2.45 GHz modulated by a 3.84 Mbps QPSK signal are presented. The proposed spatial modulator is able to simplify RF transmitter design and achieve highly efficient power transmission.

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Section: Varyingmentioning

confidence: 99%

Section: Varyingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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RF Spatial Modulation Using Antenna Arrays

Zhou

Chia

Qing

et al. 2013

IEEE Trans. Antennas Propagat.

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“…This is predicted to yield 100 mW at W-band in a MMIC realization 89 and has yielded 5 W in a quasi-optical frequency tripler grid array 90 at 99 GHz in a pulsed proof-of-principle experiment with recent activities aimed at a cw realization. Two recent reviews provide an excellent overview of the current state-of-the-art in spatial power combining 91,92 .…”

Section: Phase Imaging Interferometrymentioning

confidence: 99%

Recent Advancements in Microwave Imaging Plasma Diagnostics

Park¹,

Chang²,

Deng³

et al. 2002

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Significant advances in microwave and millimeter wave technology over the past decade have enabled the development of a new generation of imaging diagnostics for current and envisioned magnetic fusion devices. Prominent among these are revolutionary microwave electron cyclotron emission imaging (ECEI), microwave phase imaging interferometers, imaging microwave scattering and microwave imaging reflectometer (MIR) systems for imaging T e and n e fluctuations (both turbulent and coherent) and profiles (including transport barriers) on toroidal devices such as tokamaks, spherical tori and stellarators. The diagnostic technology is reviewed, and typical diagnostic systems are analyzed. Representative experimental results obtained with these novel diagnostic systems are also presented. _______________________________________________________________________

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“…Using AFA elements in the transmit-arrays results in a bandpass transfer function whose characteristics are desirable for radar, satellite [4], and power combining applications [5], where the distributed nature of the transmit-arrays can improve the power-handling and heat dissipation in the structure.…”

Section: Introductionmentioning

confidence: 99%

Bandpass Antenna-Filter-Antenna Arrays for Millimeter-Wave Filtering Applications

Kaouach¹,

Kabashi²,

Simsim³

2015

Journal of electromagnetic engineering and science

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This paper introduces new wideband antenna-filter-antenna (AFA) uniform arrays that can be utilized as frequency selective surfaces (FSS) with low loss and sharp roll-off response, which are highly desirable characteristics for millimeter wave applications. The design adopts a simple 3-layer single polarization structure consisting of two patch antennas and a resonator. Both simulations and measurements are used to characterize the performances of the proposed design. Overall results show 18.5% 10-dB bandwidth. For the targeted band the insertion loss is less than 0.2 dB. Possible applications include quasi-optical amps, grid mixers and radomes for aircraft radar antennas.Key Words: Antenna-Filter-Antenna, Bandpass Filter Antenna, Frequency-Selective-Surfaces, Gaussian Optics Measurement System. -mail: hamza.kaouach@gmail.com, hkaouach@uqu.edu.sa) This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/ by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. ⓒ

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Quasi-optical and spatial power combining

Cited by 173 publications

References 41 publications

RF Spatial Modulation Using Antenna Arrays

RF Spatial Modulation Using Antenna Arrays

Recent Advancements in Microwave Imaging Plasma Diagnostics

Bandpass Antenna-Filter-Antenna Arrays for Millimeter-Wave Filtering Applications

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