3 to 4 GHz
Dynamic 3 D Indoor Radio Propagation Model and Applications with Radios from 433 MHZ to 2 4 GHz
... in 3-D en- vironments and 2) effectively apply to radios at a wide range of frequency ...dynamic 3-D indoor radio propagation model in a two-story building using radio technologies at both 433 MHz and ...
14
A 3 4 GHz fast locking PLL using transmission gate charge pump in 0 18m CMOS for HDMI applications
... The PLL block is designed to generate 3.4 GHz stable clock with low-jitter for HDMI applications which transfers data at the rate of 3.4 GB/s. All resistances and capacitances were extracted from layout such that ...
15
Compact 3D Monopole Antenna for Different Wireless Communication Applications
... Table 3 shows the simulated 2D radiation patterns in three principal planes, namely, ( ϕ = 0), ( ϕ = 90) and ( θ = 90) planes of the proposed 3D monopole antenna, at the selected operating frequencies including ...
9
MIMO Reconfigurable Antennas for Wi Fi 2 4 GHz Communication
... The most common and frequent use of local wireless communication is Wi-Fi technology for the purpose of accessing any type of document, audio, video from Internet through smartphones, tablets or laptops. From 2018 to ...
8
Quasi periodic pulsations in a solar microflare
... Irregular time evolution of the radio emission generated in a B2-class micro fl are ( SOL2017-01-25T10:15 ) , occurring on 2017 January 25 in active region 12,628, is studied. The micro fl are was apparently initiated by ...
9
A Compact Triple Band Meandered Line Antenna for 2 4/3 6/5 GHZ WIFI SAT COM Applications
... This paper presents A Compact Triple Band Antenna for 2.4/3.6/5 GHz WIFI and SAT.COM Applications. The proposed antenna completely covers IEEE standards IEEE 802.11b/g at 2.4 GHz, IEEE 802.11a at 5 ...
5
A fast vectorial network analyser for frequencies up to 4 GHz
... with a PLL system. These two ramp systems generate fre- quencies from 8.99 GHz to 5 GHz with a ramp duration of 20 ms. Between both frequency ramps a fixed frequency dif- ference of 50 kHz exists. For a ...
5
Design and Characterization of a 5 2 GHz/2 4 GHz Fractional Frequency Synthesizer for Low Phase Noise Performance
... Owing to the accuracy of the proposed phase noise model, we were able to optimize the synthesizer circuits for improved noise performance prior to fabrication. The overall measured and simulated phase noise performance ...
11
A Compact Dual Sharp Band-Notched UWB Antenna with Open-Ended Slots
... 3.16–3.70 GHz and ...3.4 GHz is generated by the left inverted L-shaped slot, while the higher notched band centred at ...5.5 GHz is achieved by the right inverted L- shaped ...
8
Continuously Tunable WiMAX Band-Notched UWB Antenna with Fixed WLAN Notched Band
... A CPW-fed UWB antenna having fixed WLAN rejection band and continuously tunable WiMAX notched band has been presented. The continuous tuning of the notched band is achieved with the help of a novel miniaturized resonator ...
7
t2451 2-4 GHz Cordless Telephone
... 3 When the screen displays the number you want to dial, press SELECT.. DIAL is.[r] ...
44
A Survey on Interference Mitigation Techniques for 2 4 GHz ISM Band
... technique to mitigate interference in the environment. From various study, it is found that usage of common spectrum suffers from interference and effective interference mitigation mechanism is needed for the ...
5
Impact of the Substrate Characterization Process on the Implementation of a 3 5 GHz Amplifier
... In this paper it is shown the impact of the one-port substrate characterization process on the implementation of a 3.5GHz RF power amplifier. Firstly, it has been demonstrated that the effects of ℰ r and tan δ over ...
6
The Southern H Ⅱ Region Discovery Survey I: the Bright Catalog
... Unlike the pilot survey, we aim to create high dynamic range images of our targets. Therefore, we require longer integrations and good coverage in the uv-plane. Total integration times on our targets range from ∼ 30 ...
19
Harmonic mixing using a HTS step-edge Josephson junction at 0.6 THz frequency
... The IF output power of harmonic mixing as a function of the harmonic number was experimentally studied and plotted in Fig. 5. The harmonic number studied ranges from 18 to 31 corresponding to the fundamental LO ...
5
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
Piezoelectric Transducer-Tuned Fourth-Order Microstrip Bandpass Filter with Cross-Coupling
... Electrically tunable filters are widely used in multiband and multi-standard communication systems. They can greatly reduce the volume, lower the design complexity of systems, and have certain advantages in reducing costs ...
10
1705.00124.pdf
... (5 GHz radio), Weihai (1 m), Urumqi (1 m), Abastumani (70 cm), the Blazar Optical Sky Survey (BOSS Project) at the Univer- sity of Athens Observatory (40 cm), and OJ287-15/16 Col- laboration telescopes (optical R ...
7
Bandwidth improvement of rectangular patch antenna at frequency 2 3 GHz
... [2] J. B. Pendry, A. J. Holden, D. J. Robbins, and W. J. Stewart, “Magnetism from conductors and enhanced nonlinear phenomena,” IEEE Trans. Microw. Theory Tech. 47, pp. 2075-2081, 1999. [3] R Garg, P Bhartia, I ...
5
A Polarization-Dependent Mutiband Ram Design
... Metallic arrays, placed over a grounded dielectric substrate, behave as artificial magnetic conductor (AMC) surfaces. They reflect incident waves with zero or near zero phase shifts, for a range of frequencies [3, ...
8