Abstract 2d Photonic Crystal ( Pc ) Based Power Splitter

For improving results we cut four rectangular slots S1, S2, S3 and S4 in which two horizontal slots S1 and S2 are of same dimensions with length L1 and width W1 and the vertical slots S3 and S4 are of same dimensions with length L2 and width W2 as shown in Fig.3. With these four slots we are getting good return loss for the above resonant frequencies as shown in Fig.4 but the return loss and bandwidth at all resonant frequencies can be improved by using cylindrical slot.

However, there are some limitations which are always associated with every type of design, for example in this case though the Q-factor can be decreased accordingly by lowing the value of dielectric constant but if lowered drastically, it fails to capture enough amount of electromagnetic energy and to act as an efficient resonator.

Light passed through a transmission grating is often sent in all directions due to interference. The grating acts as a new wave source and causes the light to travel in different paths. Equation 1 below shows the relationship between path difference and light direction due to constructive interference. D represents the line spacing and sinƟ=a/c according to the drawing below.

To do this, voltage division was used two times, an example of voltage division can be seen below in Equation 1. To create a

(1) For implementing EBG structures, a very large area is required to implement the periodic pattern and it is also very difficult to define the unit element of EBG structure whereas DGS structures has properties similar to EBG and the geometry of DGS can be one or very few etched structures which is very simpler and also does not require large area for implementation of it.

In the last decades the management of patients with uveal melanoma has changed towards globe sparing techniques. Alternatives to the radical enucleation vary from observation to transpupillary thermotherapy, block-excision, and endoresection with pars plana vitrectomy, brachytherapy using a variety of radioisotopes, radiotherapy, Leksell Gama Knife and stereotactic radiosurgery (Henderson et al. 2006; Dieckmann et al. 2006; Mosci et al. 2009).

A split load board has two RCDs within a module with a certain amount of ways after each RCD, if we use a 16 Way board installed in a garage as an example it would mean that we could use 8 ways to take multiple lighting circuits and 8 sockets. As mentioned the two RCDs would mean that if a fault tripped out the lighting the RCD would kick in safely isolating that part of the split load board whilst not interrupting the services to the

Fig. 12 shows the switching loss reduction using the DPWM2O, DPWMLPF2 and GDPWMO sequences in comparison to the conventional SVPWM strategy for 30°-60° power factor angle range. It can be seen that the DPWM2O and DPWMLPF2 sequences provide maximum switching loss reduction only at 30° and 60°, respectively. In other power factors, their loss reduction capability reduces. On the other hand, the GDPWMO strategy reduces switching losses around 50% over the entire range of power factor angle, similar to the analytical results shown in Fig.

The tangential components (seen in Figure 3.11), which are in phase, means that the resulting fields combine to give maximum radiated field normal to the surface of the structure. Hence the edges along the width can be represented as two radiating slots, which are λ / 2 apart and excited in phase and radiating in the half space above the ground plane. The fringing fields along the width can be modeled as radiating slots and electrically the patch of the microstrip antenna looks greater than its

Split lighting is when the face is split into equal halves with one side of the face in light whilst the

Scissors: Holding down the option key switches the standard Scissors Tool  to the Scissors Tool with a plus symbol  . Now instead of making one split, a click on the Region splits the Region

The wavelength gets shorter when you shine it through glass more than water because the more dense the medium is the wavelength becomes shorter. Also, when you shine a beam of light through a prism it would reflect of one of the sides which creates an angle and it also separate the light and forms into a

Photons we see are in the star, our sun. The are built up by fusion reaction in the sun's core. They are first gamma radiation. Once they leave the sun's surface after moving in and out of it many times numerous times. They travel at the speed of light. All electromagnetic waves are made of photons. Photons travel at the speed of light which is 186,000 miles per second in reference to NASA. Nasa Photons are the smallest form of light according to Scienceline.

For years, infrared LED has been merely a system for piping light around corners and into the inaccessible places to allow the hidden to be lighted. But now, infrared LED has evolved into a system of significantly greater importance and use. Throughout the world, it is now being used to transmit voice, television and data signals as light waves. Its advantages as compared with conventional coaxial cable or twisted wire pairs are manifold. As a result, millions of dollars are being spent to put these light wave communication systems into operation.

Fundamental characteristics of this antenna such as the radiation directivity and the frequency response are measured. Figure shows a picture of the proposed antenna that has a shape of ―tears drop‖. Using Novel Ultra Wideband Planar Reflector Antenna a reflector antenna relies on reflection of energy from the reflector. Reflector antennas tend to be good directional and high gain antennas [11]. There are some classes of ultra wideband reflector antennas, such as planar, corner, and parabolic cylinder reflector antennas.