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Multi-band SIW antenna with modulated metasurface at 5G frequency
2018 IEEE Indian Conference on Antennas and Propogation (InCAP), 2018This paper proposes a multi-band SIW antenna which is linearly polarized. The antenna consists of a T-shaped radiator inscribed on the upper side of the dielectric substrate. This radiator is responsible for multi-band occurrence. The operating frequency is chosen to be 28 GHz, which is a valid selection for 5G applications.
Priya Suresh Nair +2 more
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Modulation of a multi-band tunable metamaterial with metal disk array
Optical Materials, 2020Abstract A multi-band metamaterial with vanadium dioxide (VO2) layer is proposed, manufactured, and measured in the terahertz (THz) band. Two absorption peaks (P1 and P2) are excited at 33.88 THz (60% amplitude, and 0.7 THz full width at half maximum (FWHM)) and 37.94 THz (76% amplitude, and 1.62 THz FWHM) at room temperature. The P1 peak is achieved
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Multi-Band RF Downconversion Over Fiber With a Single Modulator
IEEE Photonics Technology Letters, 2018We present the theory for an experimental verification of a new technique to combine multiple microwave signals populating a wide spectrum into a single, small band for further relay or processing. The method is an extension of well-known RF-over-fiber downconversion techniques but with multiple local oscillators (LOs) to translate widely spaced ...
Bryan M. Haas, Jason D. McKinney
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Experimental Verification of Visible Light Communications based on Multi-Band CAP Modulation
Optical Fiber Communication Conference, 2015A multi-band CAP system is experimentally demonstrated for the first time in VLC. We show that with an 8-CAP testbed spectral efficiencies (∼4.75 b/s/Hz) at a realistic distance of 1 m can be reached.
Paul Anthony Haigh +9 more
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Multi-band printed monopole antenna for ubiquitous module in mobile station
2nd European Conference on Antennas and Propagation (EuCAP 2007), 2007Current mobile communication systems in W-CDMA systems are assigned three frequency bands in Japan. We present and investigate a multi-resonant printed monopole antenna (80×120×1.6 mm3) for a small wireless packet communication module (called a ubiquitous communication module).
Y. Kimura, Y. Ebine, T. Imai
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Balanced SiGe PA Module for Multi-Band and Multi-Mode Cellular-Phone Applications
2008 IEEE International Solid-State Circuits Conference - Digest of Technical Papers, 2008In this paper, the integration of a MM (GSM/EDGE/WCDMA) MB (850/900MHz, 1800/1900/2100MHz) 50 Omega-matched isolator-less flip-chip PAs, capable of envelope and power tracking operation, is discussed. The PAs are integrated in a 0.25 mum SiGe technology and are soldered on a 4-layer substrate. The system is hosted in a 6 x 8 mm2 plastic module.
Antonino Scuderi +4 more
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Advanced multi-band modulation technology for underwater communication systems
2015In recent years, underwater communication (UWC) systems have been attractive in the development of civilian and military applications. However, there are many challenging issues surrounding such communication systems due to severe channel conditions such as ambient noise, frequency selectivity, multi-path with significant tap delays and Doppler shifts.
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A comparison of different module configurations for multi-band-gap solar cells
Solar Cells, 1988Abstract The use of different module configurations with multijunction (MJ) solar cells was investigated. Module configuration refers to the electrical circuit in which the subcells of the MJ cell are connected. The simplest configuration has the subcells connected in series.
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Stacked FET structure for multi-band mobile terminal power amplifier module
2013 IEEE MTT-S International Microwave Symposium Digest (MTT), 2013A multi-band PHEMT 5 × 7 mm2 PA module for mobile applications is described based upon a stacked FET structure. The PA has 28.5 dBm linear output power and over 40 % PAE with -38 dBc ACLR for a 3.2 V supply voltage, covering a wide frequency range of 698-915 MHz, 1430-1450 MHz and 1710-1980 MHz.
Hideshi Motoyama +4 more
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A multi-band, dual-antenna and antenna interface module system for mobile phones
2007 International workshop on Antenna Technology: Small and Smart Antennas Metamaterials and Applications, 2007This paper presents details of a self-diplexing dual antenna system and associated antenna interface module. The manufactured demonstrator operates efficiently in 4 GSM bands and 3 UTRA bands with antennas that are just 6 mm high. It is shown that the VSWR can be maintained below approximately 4:1 in all modes no matter how the phone containing the ...
K. R. Boyle +7 more
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