This paper presents a measurement method for the shielding effectiveness (SE) of personal computer (PC) case using three-axis electrooptic sensors and vector network analyzer (VNA). The SE is obtained by taking difference between logarithmic values ratios transmitted power to input conditions with without PC case. measurements versus incident angle polarization electromagnetic fields are perfor...

This paper presents a novel reconfigurable bandpass filter with three states used for C band wireless applications. The frequency is achieved using the combination of different microstrip coupled resonator structure and switching device as PIN diodes. open-loop provides narrow at 5.1, 5.2, 5.8 GHz. reconfiguration obtained without compromising performances. compact size proposed designed along ...

This paper presents impedance matched high gain inverted-L antenna (ILA) and stair ILA for 5 GHz wireless local area network (WLAN) by means of numerical and experimental analysis. Numerical simulation is carried out using method of moments in Numerical Electromagnetic Code (NEC-2) and agilent vector network analyzer, watts antenna trainer, and microwave engineering trainer are used for the mea...

The rapid progress in nanoelectronics showed an urgent need for microwave measurement of impedances extremely different from the 50Ω reference impedance of measurement instruments. In commonly used methods input impedance or admittance of a device under test (DUT) is derived from measured value of its reflection coefficient causing serious accuracy problems for very high and very low impedances...

This paper presents a simple method for determining the dielectric constant of microwave PCB substrates. In the presented method, a bandpass microstrip filter on the PCB substrate with a user-predicted dielectric constant value is designed for a given center frequency, and it is implemented. The simulation results of the designed bandpass filter are obtained by the help of electromagnetic analy...

In this paper, a wideband electronic beamforming concept applicable for UWB short pulse systems is derived and experimentally demonstrated. In particular, a Finite Impulse Response (FIR)-filter based beamforming network is configured such that an antenna array yields a desired radiation pattern within a predefined frequency range. An experimental verification of a wideband transmission system i...

A low Gilbert damping factor is crucial for emerging magneto-acoustic devices. In current work, angle-dependent and temperature-dependent of magnetostrictive FeCoSiB thin films have been investigated using electron spin resonance (ESR) vector network analyzer ferromagnetic (VNA-FMR) techniques, respectively. very ∼0.0038 was measured with in-plane magnetic fields at room temperature. Temperatur...