Search Results - Short Wave (band)

Compact ultra-wide band microwave filter utilizing quarter-wave length short-circuited stubs with reduced number of vias by Razalli, Mohammad Shahrazel, Ismail, Alyani, Mahdi, Mohd Adzir, Hamidon, Mohd Nizar

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Ultra-wide band microwave filter utilizing quarter-wavelength short-circuited stubs. by Razalli, Mohammad Shahrazel, Ismail, Alyani, Mahdi, Mohd Adzir, Hamidon, Mohd Nizar

“…Five poles quarter-wave short-circuited stubs is designed and developed to support the ultra-wide band (UWB) applications. …”
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Design And Construction Of A C-Band Polarimetric Scatterometer by Koo , Voon Chet

“…The system operates using frequency-modulated continuous-wave (FM-CW) technique. For short range radar, this is a simpler and more economical hardware design. …”
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Design And Construction Of A C-Band Polarimetric Scatterometer by Koo, Voon Chet

“…The system operates using frequency-modulated continuous-wave (FM-CW) technique. For short range radar, this is a simpler and more economical hardware design. …”
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A linear cavity S-band Brillouin/Erbium fiber laser by Harun, S. W., Zulkifli, M. Z., Ahmad, H.

“…A linear cavity short wavelength band Brillouin/Erbium fiber laser (S-band BEFL) is demonstrated. …”
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Continuous-wave fiber optical parametric amplifiers and oscillators by Lim, Lien Tze

“…Fiber optical parametric amplifier (FOPA) is an optical amplifier that operates based on an optical nonlinear phenomenon known as four-wave mixing (FWM). Parametric amplification takes place when a forward-propagating pump light and a signal light are injected into a gain medium of highly nonlinear fiber (HNLF). …”
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The effects of rain fade on millimetre wave channel in tropical climate by Budalal, Asma Ali H, Islam, Md Rafiqul, Habaebi, Mohamed Hadi, Rahman, Tharek Abd

“…This study is important for understanding signal propagation phenomena in short distance and enabling the utilization of the millimetre wave band for an urban micro-cellular environment for 5G communication system.…”
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Coherent states and wave packet dynamics for the Bogoliubov-de Gennes equations by Langham-Lopez, Jordan

“…We also analyse the propagation of generalized coherent state wave packets under the Bogoliubov-de Gennes Hamiltonian. …”
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Detection of permeability of hydrocarbon contamination in subsurface using : electromagnetic wave / Norlaila Hanim Salman by Salman, Norlaila Hanim

“…It is based on the emission by an antenna coupled to the ground, of short electromagnetic pulses of harmonic waves sweeping a certain frequency band. …”
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Rapid-response radio observations of short GRB 181123B with the Australia Telescope Compact Array by Anderson, Gemma, Bell, M.E., Stevens, J., Aksulu, M.D., Miller-Jones, James, Horst, AJ van der, Wijers, R.A.M.J., Rowlinson, A., Bahramian, Arash, Hancock, Paul, Macquart, Jean-Pierre, Ryder, S.D., Plotkin, Richard

“…We introduce the Australia Telescope Compact Array (ATCA) rapid-response mode by presenting the first successful trigger on the short-duration gamma-ray burst (GRB) 181123B. Early-time radio observations of short GRBs may provide vital insights into the radio afterglow properties of Advanced LIGO- and Virgo-detected gravitational wave events, which will in turn inform follow-up strategies to search for counterparts within their large positional uncertainties. …”
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Novel compact microstrip ultra-wideband filter utilizing short-circuited stubs with less vias by Razalli, Mohammad Shahrazel, Ismail, Alyani, Mahdi, Mohd Adzir, Hamidon, Mohd Nizar

“…The filter is based on quarter-wave length short-circuited stubs model. We introduced here a new schematic model by extracting all parasitic elements such as T-junction and discontinuity in our new pattern of UWB filter. …”
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Single Pole Double Throw Discrete PIN Diode Switch with Switchable Quater Wave Stub Resonator by Shairi, Noor Azwan, Ahmad, Badrul Hisham, Zakaria, Zahriladha, Peng Wen, Wong

“…Therefore, this paper proposed switchable quarter wave stub resonator for isolation improvement of SPDT discrete PIN diode switch for Time Division Duplex switching of WiMAX and LTE front-end system at 2.3 to 2.7 GHz band. …”
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Sum rate maximization versus MSE minimization in FDD massive MIMO systems with short coherence time by Alsabah, Muntadher, Abdulrazzaq Naser, Marwah, Mahmmod, Basheera M., Noordin, Nor K., Abdulhussain, Sadiq H.

“…This finding is necessary to extend the benefit of mMIMO systems to high frequency bands such as millimeter-wave (mmWave) and Terahertz (THZ) communications.…”
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Radio propagation modelling in caves environment by Soo, Qi Ping

“…In this research, for short-range cave propagation loss modeling at VHF, SHF and milli-meter wave bands, wellknown via path loss models taking into account both the multipath reflection and the scattering from rough surface is optimal for path loss prediction. …”
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Millimeter wave propagation measurements and characteristics for 5G system by Al-Samman, Ahmed M., Azmi, Marwan Hadri, Al-Gumaei, Y. A., Al-Hadhrami, Tawfik, Abd. Rahman, Tharek, Fazea, Yousef, Al-Mqdashi, Abdulmajid

“…In future 5G systems, the millimeter wave (mmWave) band will be used to support a large capacity for current mobile broadband. …”
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A phase-space approach for predicting signal strength in wireless communication systems by Blakaj, Valon

“…It has been suggested that the new generation of wireless communication, known as fifth generation (5G), will operate at very high frequencies, ranging from microwave (6 GHz) to mmWave (above 60 GHz). Although, these frequency bands offer the possibility to increase the communication capacity, less is known about the propagation characteristics in indoor and outdoor environments. …”
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Evidence for dynamically driven formation of the GW170817 neutron star binary in NGC 4993 by Palmese, A., Hartley, W., Tarsitano, F., Conselice, Christopher J., Lahav, O., Allam, S., Annis, J., Lin, H., Soares-Santos, M., Tucker, D., Brout, D., Banerji, M., Bechtol, K., Diehl, H.T., Fruchter, A., García-Bellido, J., Herner, K., Levan, A.J., Li, T.S., Lidman, C., Misra, K., Sako, M., Scolnic, D., Smith, M., Abbott, T.M.C., Abdalla, F.B., Benoit-Lévy, A., Bertin, E., Brooks, D., Buckley-Geer, E., Rosell, A. Carnero, Kind, M. Carrasco, Carretero, J., Castander, F.J., Cunha, C.E., D’Andrea, C.B., da Costa, L.N., Davis, C., DePoy, D.L., Desai, S., Dietrich, J.P., Doel, P., Drlica-Wagner, A., Eifler, T.F., Evrard, A.E., Flaugher, B., Fosalba, P., Frieman, J., Gaztanaga, E., Gerdes, D.W., Giannantonio, T., Gruen, D., Gruendl, R.A., Gschwend, J., Gutierrez, G., Honscheid, K., Jain, B., James, D.J., Jeltema, T., Johnson, M.W.G., Johnson, M.D., Krause, E., Kron, R., Kuehn, K., Kuhlmann, S., Kuropatkin, N., Lima, M., Maia, M.A.G., March, M., Marshall, J.L., McMahon, R.G., Menanteau, F., Miller, C.J., Miquel, R., Neilsen, E., Ogando, R.L.C., Plazas, A.A., Reil, K., Romer, A.K., Sanchez, E., Schindler, R., Smith, R.C., Sobreira, F., Suchyta, E., Swanson, M.E.C., Tarle, G., Thomas, D., Thomas, R.C., Walker, A.R., Weller, J., Zhang, Y., Zuntz, J.

“…We present a study of NGC 4993, the host galaxy of the GW170817 gravitational-wave event, the GRB 170817A short gamma-ray burst (sGRB), and the AT 2017gfo kilonova. …”
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High gain compact antenna design for underwater communication by Majeed, Sama Fouad

“…However, higher bands than microwave bands also degrade in water, where the wave distance will become too short. …”
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Prediction of signal attenuation due to duststorms using mie scattering by Islam, Md. Rafiqul, Elabdin, Zain, Elshaikh, Omer, Khalifa, Othman Omran, Alam, A. H. M. Zahirul, Khan, Sheroz, Naji, Ahmed Wathik

“…The present trend in radio design calls for the use of frequencies above 40 GHz for short links carrying wide-band digital communication signals. …”
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Design and Development of a Compact and Vialess Microstrip Ultra-Wideband Bandpass Filter by Razalli, Mohammad Shahrazel

“…This is due to the UWB format signal which uses very short time pulse wave within 1.0 ns to 0.1 ns. This thesis presents theories, methods, parameters, simulations and measurements of designed and development of bandpass filters to support UWB communication systems. …”
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