Results 101 to 110 of about 30,504 (243)

A New Compact Small Circular Patch Antenna for UWB Communication

Journal of Communications Software and Systems, 2015
A new small circular patch antenna for ultra-wideband (UWB) applications is presented. By studying this structure, it is shown that the insertion of a slot with the desired length and width in the ground plane, can lead to a large bandwidth. Our antenna,
Soufian Lakrit, Hassan Ammor
doaj  

SMMR Simulator radiative transfer calibration model. 2: Algorithm development [PDF]

Passive microwave measurements performed from Earth orbit can be used to provide global data on a wide range of geophysical and meteorological phenomena. A Scanning Multichannel Microwave Radiometer (SMMR) is being flown on the Nimbus-G satellite.
Calhoon, C., Krupp, B., Link, S.
core   +1 more source

The influence of polarization on millimeter wave propagation through rain [PDF]

The measurement and analysis of the depolarization and attenuation that occur when millimeter wave radio signals propagate through rain are described.
Bostian, C. W., Marshall, R. E., Stutzman, W. L., Wiley, P. H.   +3 more
core   +1 more source

A 50-60 GHz latching phase shifter Final report [PDF]

Digital latching ferrite phase ...

core   +1 more source

Analysis and design of L-strip proximity coupled circular microstrip antenna

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
An L-strip proximity coupled circular microstrip antenna is proposed. The structure is investigated using circuit theoretic approach and simulated using IE3D simulation software.
Ganga Prasad Pandey, Binod Kumar Kanaujia, Surendra. K. Gupta, A. K. Gautam   +3 more
doaj   +1 more source

Optimasi Antena Miktrostip Rectangular Patch Polarisasi Sirkuler pada Frekuensi 2.4 GHz dengan Algoritma Genetika untuk Satelit Nano

Jurnal Teknik ITS, 2013
Pada penelitian ini dibuat simulasi desain antena mikrostrip dengan optimasi menggunakan algoritma genetika yang disesuaikan dengan ukuran satelit nano. Salah satu kriteria dari satelit tersebut adalah memiliki antena dengan frekuensi 2,4 GHz.
Evi Rahmawati, Eko Setijadi, Gamantyo Hendrantoro   +2 more
doaj  

Shuttle antenna radome technology test program. Volume 2: Development of S-band antenna interface design [PDF]

The effects of the Thermal Protection Subsystem (TPS) contamination on the space shuttle orbiter S band quad antenna due to multiple mission buildup are discussed.
Baranowski, L. C., Kuhlman, E. A.
core   +1 more source

Test results for 20-GHz GaAs FET spacecraft power amplifier [PDF]

Test were conducted to measure the performance of the 20-GHz solid state, proof-of-concept amplifier. The amplifier operates over the 17.7 to 20.2-GHz frequency range and uses high power gallium arsenide field effect transistors. The amplifier design and
Shalkhauser, K. A.
core   +1 more source

Development of a HgCdTe photomixer and impedance matched GaAs FET amplifier [PDF]

A research program for the development of a 10.6 micron HgCdTe photodiode/GaAs field effect transistor amplifier package for use at cryogenic temperatures (77k).
Paulauskas, W. A., Shanley, J. F., Taylor, D. R.   +2 more
core   +1 more source

Combining Microstrip Meander Line and Dipole Antennas: Dual-Band Solution for PIR Equipment

Emitor: Jurnal Teknik Elektro
One of the aviation navigation tools is the Instrument Landing System (ILS), which functions to provide guidance signals to aircraft in the final approach position toward the runway.
Muhamad Adimukti Prasojo, Muh Wildan, Eriyandi, Priyo Wibowo   +3 more
doaj   +1 more source