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A probe-fed stacked U-slot patch antenna for satellite applications is presented. The impedance bandwidth (VSWR≤1.5) of 7.7% is achieved at the designed frequency fo. The simulated peak realized gain of the proposed antenna is about 9 dBi.
Dual-band wireless power transfer (WPT) system will be one of the noticeable researches about WPT because of communication between the transmitting and receiving resonators. To realize dual bands, an extra compensation circuit (CSC) is inserted into the original WPT coil. In this paper, we establish wide-band model for dual-band WPT coil on the basis of vector fitting (VF) and partial element equivalent...
A single-fed 5.8 GHz dual-polarized rectenna (rectifying antenna) is presented. The impedance bandwidth of antenna meets the specification of Industrial Scientific Medical (ISM) and the measured peak gain varies from 4.5–5.7 dBi. The single-fed dual-polarized rectenna achieves RF-to-DC conversion efficiency of 79% at 5.8 GHz and DC voltage of 7.38 V, it is attainable for wireless power transmission.
A novel integration structure of EMI filter based on multilayer ceramic is proposed in this paper. The inductors and capacitors of the new structure can be designed separately, which is advantageous to manufacture. Besides, the Insertion Loss(IL) is usually measured under the condition of the source impedance and load impedance are both 50Ω, which is different from the actual situation. In the process...
In recent years, with the expansion of the scale of the aircraft and the increase of electricity consumption on aircraft, in order to fully utilize the limited space on the plane and to easily install the electrical wires, a common way is to make the wires laid bunched together. Due to the proximity effect, the impedance of the wires bunched together compared to that of the wires installed singly...
In this paper, a full-wave semi-analytical solution of self and mutual impedances for a coil-based system is proposed. It consists of two concentric circular coils with rectangular cross sections. Traditionally, the calculation of self and mutual impedances of these coils are based on eddy current approximation, where a simple background is assumed to achieve analytical and semi-analytical solutions...
A compact and novel lowpass filter using three-order corner-cutting TCMRC (T-shaped compact microstrip resonator cells) is presented. Such a structure decreases the unnecessary coupling between the microstrip transmission lines and presents a good impedance matching and less spurious responses. Based on this theory, the proposed filter has been designed, fabricated and measured. From the measurements,...
This paper introduces a program for shunt-stub impedance matching tuners. The basic idea is placing an impedance matching network between a load and a transmission line. As long as the load impedance has some nonzero real part, a matching network can always be found. However, matching the load over a band of frequencies will bring an increase in complexity. The program illustrated in this paper provides...
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