Core Levels, Band Alignments, and Valence-Band States in CuSbS2 for Solar Cell Applications

Modified U-Slot Stacked Micro-Strip Patch Antenna for Ultra-Wideband Applications in S Band, C Band and X Band

The U-slot micro-strip patch antennas were originally developed for bandwidth broadening applications. This study presents a transmission line feed to modify the U-slot stacked rectangular micro-strip patch antenna for Ultra-Wide Band (UWB) communications. The modified antenna has a U-cut loaded with parallel slits and corner slots and is printed on a dielectric substrate of FR4 with relative p...

Asymmetrical-fed RHCP Wide-Band Slot Element for X-Band applications

An outstanding square slot element, for x-band wireless applications with asymmetric coplanar waveguide fed (CPW) is proposed. Various shapes of metallic strips are utilized as grounded stubs for providing Right Hand Circular Polarization (RHCP) functionality and wide-band properties. By adjusting the proposed stubs and hook-shaped radiator, length and positions, wider impedance band width is o...

Dual-Band Evanescent-Mode Substrate Integrated Waveguide Band-pass Filter for WLAN Applications

A new multi-layer substrate integrated waveguide (SIW) structure is developed to design dual-band evanescent-mode band-pass filters (BPFs). Two independent series LC circuits are implemented by incorporating metallic irises in the different layers of the structure. The combination of the metallic irises with capacitive-plates is embedded inside the SIW to independently excite two evane...

Valence band states in diamond p-delta-doped quantum wells

The hole energy structure in boron delta-doped diamond is studied with the use of the 6 × 6 k · p Hamiltonian. The approach starts with a Thomas-Fermi-based description of the heavy, light and split-off hole states at the Brillouin zone center, and is extended to k 6= 0 points by using the obtained Γ-point solutions as a basis for the diagonalization that leads to the energy vs k relations corr...

Valence-Band Ordering in ZnO