this paper presents a new design for a microstrip dual-band band-pass microstrip filter (bpf) with suitable isolation between two passbands. in this design, a basic structure is used to achieve a desirable frequency characteristic in the passband. in this regard, defected ground structure (dgs) is implemented to reach optimum parameters of the filter such as bandwidth, return loss, insertion lo...

The Notch pathway is an evolutionarily conserved signaling system that plays a critical pleiotropic role in regulating stem cell self-renewal and differentiation. The functional outcome of Notch signaling is highly dependent on cellular context and signal dosage. For example, distinct levels of Notch activity can either promote or suppress proliferation of mammary gland epithelial cells. In add...

In this paper, UWB technology operating in broad frequency range of 3.1-10.6 GHz has shown great achievement for highspeed wireless communications. to satisfy the UWB system requirements, a band pass filter with a broad pass band width, low insertion loss, and high stop-band suppression. UWB band-pass filter (BPF) with wireless local area network (WLAN) notch at 5.8 GHz and 3-dB fractional band...

A new type of directional dual-band antenna is developed for 2.4/5 GHz wireless applications. The dual-band antenna consists of a longer dipole for the lower band and a pair of shorter dipoles for the upper band. A simple coupling microstrip line is employed to excite the dipoles. Both the dual-band antenna and the feeding microstrip line are printed on the same substrate, leading to a fully pl...

In this project a wideband E-shaped patch antenna using Uslots is to be described. A patch antenna, also known as a rectangular micro strip antenna, is an antenna with a low profile, can be mounted on a flat surface. A wide range of radiation pattern can be achieved with this antenna and it is inexpensive. The wide-band mechanism is explored by investigating the behavior of the currents on the ...

A small metamaterial notch-antenna with band reject at 3.5 and 4.4 GHz is proposed by introducing reactance to balanced composite left-right unit cell, thus making it non-resonant the desired frequency without any change in overall size. Simulations were carried on HFSS antenna notch implemented RT\Duroid substrate. The type I II CRLH illustrate that notches GHz, VSWR > 2. Such filters suita...

myocardial fractional flow reserve (ffr) is a new index of the functional significance of intermediate coronary stenoses that is calculated from pressure measurements made during coronary arteriography. the aim of this study was to evaluate the correlation between non-hyperemic coronary pressure dicrotic notch and fractional flow reserve (ffr). a consecutive of 114 patients (73 men and 41 women...