5 MHz to 3 GHz
The widest frequency radio relic spectra: observations from 150 MHz to 30 GHz
... ∼ 5 per cent of the relic flux density) at AMI-LA resolution and at the large cluster-centric distances the ‘Sausage’ and ‘Toothbrush’ relics are located ...10 GHz for Effelsberg observations of the relic ...
16
Triode Magnetron Injection Gun for 132 GHz Gyrotron for 200 MHz Dnp-NMR Application
... 132 GHz frequency is required for dynamic nuclear polarization in 200 MHz NMR ...132 GHz frequency for 200 MHz DNP/NMR experiment is ...2–3 GHz, a series of cavity axial modes is ...
11
250 MHz to 30 GHz , Unilateral Circuitmodel for Ingap/GaAs Hbt
... of 3 × 3 µm × 40 µm, InGaP/GaAs HBT into its unilateral equivalent over the frequency range of 250 MHz to 30 ...from 3 mA to 150 mA and collector- emitter voltage from 1 V to 5 ...
12
The Warped One: Nationalist Adaptations of the Cuchulain Myth
... 700 MHz, 2.4 GHz and 5 GHz, at two different locations, rural and urban, and with two different antenna positions, inside and outside of the ...The 5 GHz cases had the lowest ...
59
Antenna Bandwidth Enhancement Using Metamaterial Structure
... Figure 3(a) and Figure 3(b). The bandwidth at the 3.4 GHz band is around ...127.92 MHz with the corresponding value of return loss as ...131.66 MHz with the corresponding value of ...
5
Dynamic 3 D Indoor Radio Propagation Model and Applications with Radios from 433 MHZ to 2 4 GHz
... When Mark Weiser first coined the phrase “ubiquitous computing” around 1988 [1,2], the idea of “information available at our fingertips during a walk” was stilla dream. Today, through relentless pursuit of innovations in ...
14
Tuning of Yagi Uda Antenna with Gain Enhancement at 300 Mhz and 2 4 Ghz Bands for Wi Fi Application
... Figure 3 Gain spacing curve for closely spaced Yagi-Uda From this graph, we can conclude that as the spacing between the elements increases, the value of gain ...figure 5 and 6, the radiation pattern is ...
7
Ultra-Wideband Planar Inverted-F Antenna (PIFA) for Mobile Phone Frequencies and Ultra-Wideband Applications
... new antenna are shown in Figure 4. Note that the prototype satisfies the criterion of S 11 < −6 dB in the whole band, from 817 MHz to 11.5 GHz, except in the interval from 3.36 to 3.72 GHz where S ...
12
A Novel Design of Compact Dipole Antenna for 900 MHz and 2.4 GHz RFID Tag Applications
... Different kinds of fractal antennas have been studied in several research articles, such as Sierpinski monopole [3] Koch curves monopole [4] and tree monopole [5], they verified that fractal antennas has ...
6
Conjoined, 2.4/5-GHz WLAN Two-Monopole System Decoupled Using Mode-Controlled Capacitor for Notebook Computers
... Figs. 3 and 4. In Fig. 3, two largely different-scaled values ...2–3 GHz frequency range. The resonant mode around 2.4 GHz is identified as the dipole mode, formed by the horizontal ...
10
Five Element Printed Modified Vivaldi Array Covering 5 3 to 20 GHz
... In this present paper, the reference antenna taken is a single element having an aperture size of 9.5mm over 5.6-20 GHz frequency range reported in our earlier paper [16]. The same reference antenna when placed in ...
6
An extended mode-matching model for improved relative permittivity measurements using a split-cylinder resonator
... Janezic, M. D., Arz, U., Begley, S., and Bartley, P.: Improved Per- mittivity Measurement of Dielectric Substrates by use of the TE111 Mode of a Split-Cylinder Cavity, in: Proc. 73rd ARFTG IEEE Microwave Measurement ...
6
Energy detection based cooperative spectrum sensing system for emergency networks
... The main task of this work is to develop a cooperative spectrum sensing system using the GNU Radio tools, MATLAB, and the USRP hardware. The GNU radio is an open source software that has a lot of signal blocks that can ...
7
Dual-Polarized Complementary Structure Antenna Based on Babinet's Principle
... The center frequencies of the two ports are shifted a little bit because of the low level of the assembling precision, but in the working band of 4.9–5.1 GHz, it almost meets the simulated results. As can be seen ...
8
Investigations for broadband internet within high-speed trains
... For further analysis WSSUS models were derived for suc- cessive blocks consisting of 64 impulse responses each by the methods developed in U. Martin (1994). The evaluation of estimated far field paths given in Table 2 ...
6
Tetra Frequency Microstrip Antenna for Wireless Applications
... 5.8 GHz Bands using Genetic Algorithm Optimization", International Journal of Engineering and Technology, 1 (4) (2012) 466-471, ©Science Publishing Corporation, ...
5
Subarcsecond international LOFAR radio images of Arp 220 at 150 MHz. A kpc-scale star forming disk surrounding nuclei with shocked outflows
... We model the Arp 220 as a three-component model: the nu- clei as exponential disks with thermal absorption, surrounded by a uniform sphere of optically thin synchrotron emission. Our model successfully explains the basic ...
18
Electromagnetic Simulation for the Diagnosis of Lipoprotein Density in Human Blood, a Non Invasive Approach
... DOI: 10.4236/ojab.2017.41001 3 Open Journal of Applied Biosensor lecting impedance data via electromagnetic wave application [11] [12]. In addi- tion to monitoring blood glucose levels, Type II diabetic patients ...
12
The evolution of young HII regions. I. Continuum emission and internal dynamics
... at 5 GHz (see Table A.2). All but two of the targets have both 5 and ...8.6 GHz detections with ...8 GHz and IR luminosities of these ...
25
Impact of the Substrate Characterization Process on the Implementation of a 3 5 GHz Amplifier
... Then, taking that into account, the central frequency was selected considering that its second harmonic is within the working range of the spectrum analyzer. For that reason, fc = 0.6 GHz was selected. Fig. 1 ...
6