[PDF] Top 20 J. Microw. Optoelectron. Electromagn. Appl. vol.16 número3

... Quantum Particle Swarm Optimization for Synthesis of Non-uniformly Spaced Linear Arrays with Broadband Frequency Invariant.. Pattern.[r] ... See full document

... packet using the AdFEC technique is larger than the average time to transmit a packet by using AdM. technique for Es/No ≥ 28.13 dB[r] ... See full document

... Abstract —The transmitted Orthogonal Frequency Division Multiplexing signal in systems such as Wireless LAN, Mobile WiMAX, Digital Video Broadcasting (DVB) operating in the Super High Frequency (SHF) band suffers from ... See full document

... The effective element of any GPR system is the antenna. In order to obtain deep penetration and fine resolution, the GPR antenna should have certain features like high directivity and efficiency, wide bandwidth, and ... See full document

... The received signal intensity and the reception quality were recorded along radial routes of up to 45 km from the transmitter under both mobile and static conditi[r] ... See full document

... In equation (1), � − �� is the amplifier on-off gain and � − �� − �� is the amplifier on-off gain in the absence of pump-pump interaction effect. ∆� − �� is calculated through the solution of the Raman coupled nonlinear ... See full document

... The results indicate that the proposed method performs better than the conventional signal subspace based space-frequency algorithm both in imaging resolution and eff[r] ... See full document

... Holography was first implemented by using photosensitive materials as a recording and reconstruction media [5]; those materials required chemical processing prior to the reconstruction and are associated with Classical ... See full document

... We built a power amplifier using the MRF6S18100 LDMOS device from Freescale Semiconductors (now NXP). We used the RF35 substrate previously characterized with the parameters and dimensions shown in the previous ... See full document

... At last, based on the mixed-mode S parameters theory and the admittance matrix method of the two-port balanced network, a new BTSE power divider with planar microstrip st[r] ... See full document

... bands [3]. Therefore, the UWB systems are always at risk of being affected by several interference signals. A simple method to solve the mentioned problem is designing the UWB antennas with band- notched characteristics ... See full document

... In this simulation, we consider a two targets case when the targets are located at (75m,62.5m) and (25m, 37.5m) respectively. All the antennas in the TR array receive the same LFM signal. The extrapolation factor α is 4 ... See full document

... Abstract — With advances in information technology for health and wellness, Smart Home-based solution providers using Internet of Things (IoT) technologies, have increased [r] ... See full document

... The proposed antenna radiates conical beam pattern. In order to evaluate the uniformity received the signal of all subscribers around the antenna, the radiation patterns in XY plane at the beam direction with different ... See full document

... In order to test the hybrid model performance against other neural network approaches presented in related works, comparisons were made for the same data using a simple neural network model, with inputs being terrain and ... See full document

... The same is performed in Fig. 16 for the 25% best networks of topology 10. In Fig. 16, the interpretation for element (1,3), for example, is that 6.20% of internal void samples were misclassified as ... See full document

... As can be seen, the mobile SC deployment problem is an NP-hard problem and can be proved by mitigating the facility location problem, the proof is omitted here due to lack of space but can be found in [16], in ... See full document

... magnetic field and wave vector. Some of the other various specifications of LHMs are: reversal of Doppler effect, inverse Snell’s law, changing of convergence and divergence effect in incidence of wave to concave and ... See full document

... Figure 4 shows the resistivity determinations for these lines plotted as a function of frequency. The arithmetic mean of the resistivity of aircell of 7mm line size of length of 60 mm is about 66 nΩm. These results show ... See full document

... where the (anisotropic) constitutive properties of the medium are represented by the permittivity and permeability tensors,  and  [12,15]. The impressed electrical current J is produce by horizontal coil ... See full document