A compact, single-layered substrate-integrated waveguide (SIW) filtenna with parasitic patch is synthesized and designed. half-mode rectangular cavity (HMSIRC) adopted as the first stage resonator to reduce circuit size. functioning last well radiator arranged closely HMSIRC so enhance operational bandwidth facilitate filtering performance. Two broadside radiation nulls are realized at both upper lower band-edges sharpen band-edge roll-off rate: one generated by interaction between patch,...

A Wilkinson power divider (WPD) with bandpass property and an ultra-wide band harmonic suppression is proposed in this letter. The frequency-selecting coupling structure embedded to the conventional quarter-wavelength transmission line, which can realize three zeros. Short-ended meander line stubs are shunted at both output ports for dc block provide extra zero passband. WPD operates a -20 dB bandwidth from 1.74 3.71 GHz stopband suppress dc, 3 f <sub...

In this paper, a novel silicon-controlled rectifier (SCR) electrostatic discharge (ESD) protection device, called low voltage triggered SCR (LVTSCR) (LVTSCRTSCR), is proposed for 3.3 V I/O applications in 0.18 μm CMOS technology. One side of the device traditional LVTSCR structure, and other structure. The two structures are connected by floating P+ diffusion layer. working principle LVTSCRTSCR was verified TCAD simulation results TLP test results. show that triggering determined LVTSCR,...

In this paper, a size-reduced tri-band Gysel power divider (PD) with ultra-wideband harmonics suppression performance, simple structure, high-power handling capability, and independently controllable bandwidth is first presented. The three passbands are introduced by two biasing networks whose impedances can also be utilized to control the bandwidths of independently. With introduction slow-wave transmission lines coupled series open-circuited stubs, reduced size ultra-wide stopband...

A new equivalent circuit model of an electrical size-reduced coupled line radio frequency Marchand balun is proposed and investigated in this paper. It consists two parts lines with significantly reduced length. Compared the conventional balun, a short-circuit ending applied instead open-circuit ending, capacitive feeding introduced. The length to around 1/3 compared that balun. Detailed mathematical analysis for design included Groups simulation results are shown verify conclusions. sample...

The half-wavelength power transmission scheme has some unique advantages and disadvantages for transmission. This paper presents a new concept to take advantage of the while overcoming its main limitation. involves generation unit. unit generates transmits at specific high frequency so that distance between generator receiving end is equal voltage/current system. As result, far-away becomes electrically located as if there no line separating sending ends. proposed represents an innovative...

In this paper, a tri-band Gysel power divider (PD) based on zero-degree composite right-/left-handed (CRLH) transmission lines (TLs) is presented. Compared to the generalized design methods in which multiple passbands are realized by replacing conventional impedance transformers with quarter-wavelength CRLH-TLs, employed CRLH-TLs include high flexibility for characteristic and phase responses of composed left-handed right-handed TLs, can be used separately control bandwidths three passbands....

In order to improve the robustness of ESD dual-direction silicon-controlled rectifier, a low doping deep well PB structure is proposed instead traditional high P+ structure. The stress SCR devices with discharged from inside and lattice temperature device avoid premature burnout device. on surface increases parasitic resistance conduction uniformity As main path located in NBL, does not have large influence sustain voltage. It verified 0.25 μm BCD process. With equivalent circuit...

Based on the theory that Hy-Vo silent chain meshes with sprocket, and related condition sprocket a tool, multi-variations of are designed.The meshing design system dual phase plate-sprocket-tool is built.The method transmission presented.Combined concrete example, model established, decomposed into two single-phase systems.The research shows instantaneous ratio may be different from system.If pitches equal groups pressure angles same, largest fluctuation quantity less in comparison system,...

Permittivity sensing is commonly utilized in multiple fields for various applications. In this study, an enhanced RFID (Radio Frequency Identification) permittivity sensor system designed. Additionally, we investigated the signal processing procedures a stepwise manner to obtain resultant graphs. For validation, simplified including reader and tag tested. The comprises pulse generator pair of antennas connected oscilloscope, whereas antenna delay line sensor. produces short pulses less than...

Abstract In this paper, a compact quasi‐elliptic stepped impedance resonator‐substrate integrated waveguide (SIR‐SIW) bandpass filter with multiple transmission zeros (TZs) has been proposed. The SIR‐SIW consists of SIW cavity and SIR. employment SIR makes it possible to realize energy coupling paths within area for introduction TZs. is used its high Q, low loss characteristics. Besides, two TZs are introduced by the SIW. Including path between source load, totally four besides passband...

A low power current reference circuit with an enable-control terminal is presented in this work, which has been developed 0.5 μm CDMOS technology. The capable of providing the a nano-ampere range for supply voltage from 2 V to 3 temperature −30 °C 85 °C. simulation and measurement results demonstrated that achieves line regulation 4.67%/V, average coefficient 361.59 ppm/°C when simulations measurements are carried out 8 die-samples under same supply-voltage variations. complete designed...

We propose a temporal coupled-mode theory for the design of microstrip bandpass filters with multi-resonant modes and reveals mechanism based on multi-coupling energy conservation theorem. As an example, combined effect two orthogonal in dual-mode is analyzed detail. By simply tuning coupling efficiencies resonant modes, K-band integrated have been designed demonstrate opposite asymmetric transmission responses. Both simulation experiment results agree well theoretical analysis, which...

Power transmission facilities in the U.S. are undergoing a transformation due to increased use of distributed generation sources such as wind and solar power. The current power grid system is also antiquated need substantial retrofits make it more efficient reliable. new energy being designed built optimize delivery known “Smart Grid”. activity construction installation technologies into raises potential safety concerns. Existing management curriculum may include general information about...

In this paper, a new multi-band Gysel power divider (PD) is proposed. Compared with the conventional PD, two additional biasing networks composed of trunk transmission lines (TLs) and shunted open-end stubs are attached phase inverters between isolation resistors. Besides multiple passbands, configuration also results in simple structure without via holes or lumped elements. addition, just like as traditional proposed one features high-power handling capability, higher working frequencies...

Abstract A miniaturized rat‐race coupler with ultra‐wide band harmonic suppression is proposed in this letter. Anti‐parallel lines open stubs are applied substitution for the conventional quarter‐wavelength transmission lines. The structure provides an excellent property a reduced size comparing types. operates at 2.5 GHz up to 17.5 as measured. amplitude imbalance and phase 0.017 dB 0.018°, respectively.

Abstract In this article, a new structure of power divider (PD) is presented. This design shows high‐power handling capability, enhanced selectivity performance, and simple structure. Theory analysis based on impedance matching method has been performed. The closed‐form equations detailed procedure have given summarized at the same time. For verification purpose, prototype with center frequency 2.5 GHz simulated fabricated, measurement results show good agreement ones.

A robust ESD device for 5V circuit protection was designed and fabricated in a 0.5-μm 5V/18V CDMOS process. It is composed of paralleled SCR nLDMOS. The performance multi-fingered SCR-nLDMOS devices with strip segment layout style investigated by employing transmission line pulse (TLP) measurement. superior to applying its relatively stronger current handling capability 1.42mA/μm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> , which...

Power‐frequency parameters of long‐distance extreme‐high‐voltage (EHV) and ultra‐high‐voltage (UHV) transmission lines are the basis power system modelling analysis, but these especially difficult to accurately measure due reactance‐dominated nature strong external interference. An accurate power‐frequency parameter measurement approach is proposed in this study. The idea utilise frequency response curve indirectly extrapolate line at frequency. As no direct conducted frequency, potential...

Abstract In this letter, a coupled line type of Wilkinson power divider (PD) composed series transmission lines and is proposed. By employing 2 pairs lines, the difference between even‐/odd‐mode impedance utilized can be controlled; hence performance bandwidth out‐of‐band rejection changed simultaneously. Detailed design equations are derived easily applied in future works. Due to inherent bandpass characteristic line, DC block achieved For experimental purpose, prototype PD with center...

ABSTRACT In this article, a size‐reduced dual band‐pass transmission line (TL) with composite right/left handed (CRLH) shunt‐stub is presented. It uses T‐shaped quarter‐wavelength TL, which shows characteristics, when the electrical length +nλ/4 or −nλ/4, where n odd integer. These wavelengths can be achieved at arbitrary frequencies by CRLH‐TL property of nonlinear β versus ω. The phase delay two operating adjusted designing series TL part, identical to case conventional TL. performance...

A device with bulk and source interleaved dotting is fabricated in a 0.5-µm 24 V CDMOS process, the root cause of why it improves multi-finger high-voltage lateral double-diffused MOS (LDMOS)'s electrostatic discharge (ESD) robustness detected by Atlas three-dimensional simulation transmission line pulse system. Such structure obtains strong ESD enlarging intrinsic base resistance without increasing area sacrificing any performance nLDMOS. The measurement results demonstrated that, compared...