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2.5 to 4 GHz

Compact 3D Monopole Antenna for Different Wireless Communication Applications

Compact 3D Monopole Antenna for Different Wireless Communication Applications

... 1.8 GHz, 2.1 GHz, 2.4 GHz, 3.1 GHz, 3.5 GHz, ...5.2 GHz, 5.8 GHz and ...1 GHz, the radiation pattern corresponds to a monopole antenna in the XZ and XY planes, from ...

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Design and Characterization of a 5 2 GHz/2 4 GHz Fractional  Frequency Synthesizer for Low Phase Noise Performance

Design and Characterization of a 5 2 GHz/2 4 GHz Fractional Frequency Synthesizer for Low Phase Noise Performance

... The details of the actual circuit implementation will not be discussed in this paper, but are similar to those given in [11]. The raw VCO phase noise can be either predicted from a calculation [6] or else simulated with ...

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MIMO Reconfigurable Antennas for Wi Fi 2 4 GHz Communication

MIMO Reconfigurable Antennas for Wi Fi 2 4 GHz Communication

... 2.4 GHz and 5 GHz. Wi-Fi usually operates in 2.4 GHz and 5 GHz ...2.4 GHz band has become overcrowded and lead to interference being directed towards low information rate ...

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MINIATURIZED MICROSTRIP DUAL PATCH ANTENNA FOR 2 4 GHZ WIFI APPLICATIONS

MINIATURIZED MICROSTRIP DUAL PATCH ANTENNA FOR 2 4 GHZ WIFI APPLICATIONS

... section 2, the Width size (W) of the proposed antenna is 15 mm, the Length size (L) is 25mm, and the he thickness is ...Figure 5 presents the proposed antenna design in this ...

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A high gain PIFA at 2 45 GHz and 5 8 GHz using wireless power transfer 
		techniques for pacemaker application

A high gain PIFA at 2 45 GHz and 5 8 GHz using wireless power transfer techniques for pacemaker application

... pacemaker [3]. The antenna radiating elements is ensured to match 50 ohms in the human body tissue. Uisheon and Kim Jaehoon Choi have embedded antenna with pacemaker in pig tissue which resulted to S11 value of - 10.94 ...

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Dual-Polarized Complementary Structure Antenna Based on Babinet's Principle

Dual-Polarized Complementary Structure Antenna Based on Babinet's Principle

... of 5 GHz and suitable S ...= 2 . 5 mm, R = 7 mm, r = 10 ...h 2 = 1 . 2 mm. Fig. 5 shows the S parameters, which illustrate that the center frequency of the dual-loop ...

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A Novel Dual Band-Notched Monopole Antenna for Ultra-Wideband Application

A Novel Dual Band-Notched Monopole Antenna for Ultra-Wideband Application

... Ultra-wideband technology has gained a lot of popularity among researchers and the wireless industry after the FCC permitted its marketing within the frequency band of 3.1 GHz to 10.6 GHz [1]. In UWB ...

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Polarization Behavior of Discrete Multipath and Diffuse Scattering in Urban Environments at 4 5 GHz

Polarization Behavior of Discrete Multipath and Diffuse Scattering in Urban Environments at 4 5 GHz

... Section 2 gives a brief review of the RIMAX parameter estimation ...Section 4. Section 5 discusses the different parameters and their defi- nitions describing the polarization behavior of the ...

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Tetra Frequency Microstrip Antenna for Wireless Applications

Tetra Frequency Microstrip Antenna for Wireless Applications

... 1.8 GHz, 2.4 GHZ, 5 GHz, 6 GHz, ...2.4 GHz frequency band is also crowded with interfering devices like other Wi-Fi access points, microwave ovens, cordless phones, Bluetooth ...

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A Survey on Interference Mitigation Techniques for 2 4 GHz ISM Band

A Survey on Interference Mitigation Techniques for 2 4 GHz ISM Band

... mitigation technique based on Split Channel Reservation Multiple Access (SRMA). This is one of the earliest methods proposed to handle interference in the communication. In this technique, the author suggested to split ...

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A Compact Triple Band Meandered Line Antenna for 2 4/3 6/5 GHZ WIFI SAT COM Applications

A Compact Triple Band Meandered Line Antenna for 2 4/3 6/5 GHZ WIFI SAT COM Applications

... 2.4 GHz and 5GHz frequencies is implemented by two meandered ...2.4, 5 and 3.6 GHz frequencies. For 3.6 GHz another set of meandered group is ...

5

Design of new combined antenna for dual polarization using crossed 
		dipole at 2 23 GHZ and 5 GHZ

Design of new combined antenna for dual polarization using crossed dipole at 2 23 GHZ and 5 GHZ

... The presented antenna is also able to operate in linear polarization mode for S band the same radiating elements are implemented for a linear or circular polarization antenna, this new design has been manufactured and ...

5

2′,4′ Dihydr­­oxy 5′,6′ di­meth­oxy­chalcone

2′,4′ Dihydr­­oxy 5′,6′ di­meth­oxy­chalcone

... The bond lengths and angles of the molecule are in normal ranges (Table 1) and in agreement with all the analogues with slight variation on the C═O bond length. The C9═O1 bond length is slightly shorter than that in (II) ...

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5 Iso­propyl 5 methyl 2 sulfanyl­idene­imidazolidin 4 one

5 Iso­propyl 5 methyl 2 sulfanyl­idene­imidazolidin 4 one

... the 2-sulfanylideneimidazolidin-4-one moiety (S1/O1/N1/N2/C1–C3) is nearly planar, with a maximum deviation of ...in 2-thiohydantoin (Devillanova et ...other 2-thiohydantoin derivatives ...

7

The evolution of young HII regions. I. Continuum emission and internal dynamics

The evolution of young HII regions. I. Continuum emission and internal dynamics

... 256 GHz continuum peak for the core (36 mJy, see Table A.2) as an upper limit to the unknown fraction of the continuum that comes from free-free emission, we find an expected H29α line peak below our line ...

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(2S,4′R,5′R) (E) tert Butyl 2 acetyl 2 (2 oxo 5 phenyl 1,3 dioxolan 4 ylmeth­yl) 5 phenyl­pent 4 enoate

(2S,4′R,5′R) (E) tert Butyl 2 acetyl 2 (2 oxo 5 phenyl 1,3 dioxolan 4 ylmeth­yl) 5 phenyl­pent 4 enoate

... dissolved in dichloromethane (100 ml) and 1,1′-carbonyldiimidazole (1.5 equiv.) was added to the stirred solution at room temperature. The reaction mixture was stirred until completion to give a complex mixture of ...

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5 Phenyl 2 (4 pyrid­yl)pyrimidine

5 Phenyl 2 (4 pyrid­yl)pyrimidine

... designed for the enhanced π-acceptor character of pyridyl-type ligands for coordination and supramolecular chemistry. The title compound crystallizes with two molecules per asymmetric unit. The assignment of the nitrogen ...

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5 (4 Meth­oxy­phenyl) 4 methyl­thia­zole 2(3H) thione

5 (4 Meth­oxy­phenyl) 4 methyl­thia­zole 2(3H) thione

... N-hydroxy-5-(p-methoxyphenyl)- 4-methylthiazole-2(3H)-thione [1.676 (3) A ˚ ], N-isopro- poxy-5-(p-methoxyphenyl)-4-methylthiazole-2(3H)-thione ...

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5 (4 Chloro­phenyl) 3 oxa 4 aza­tri­cyclo­[5 2 1 02,6]­dec 4 ene

5 (4 Chloro­phenyl) 3 oxa 4 aza­tri­cyclo­[5 2 1 02,6]­dec 4 ene

... organic papers Data collection: CAD-4 Software Enraf±Nonius, 1989; cell re®nement: MolEN Fair, 1990; data reduction: MolEN; programs used to solve structure: SHELXS97 Sheldrick, 1997; pr[r] ...

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4 (4 Chloro­phen­yl) 5 [1 (4 chloro­phenyl) 2 methyl 2 nitro­prop­yl] 1,2,3 selena­diazole

4 (4 Chloro­phen­yl) 5 [1 (4 chloro­phenyl) 2 methyl 2 nitro­prop­yl] 1,2,3 selena­diazole

... of 2-[1,3-bis(4-chlorophenyl)-4-methyl-4-nitropentylidene]-1-hydrazine carboxamide ...give 4-(4- chlorophenyl)-5-[1-(4-chlorophenyl)-2-methyl-2- ...

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