Purpose Optical coherence tomography's (OCT) third outer retinal band has been attributed to the zone of interdigitation between RPE cells and cone outer segments. The purpose of this paper is to investigate the structure of this band with adaptive optics (AO)-OCT. Methods Using AO-OCT, images were obtained from two subjects. Axial structure was characterized by measuring band 3 thickness and...

A fully integrated dual-band CMOS power amplifier (PA) is developed for 802.11n WLAN applications using wafer-level package (WLP) technology. This paper presents a detailed design for the optimal impedance of dual-band PA (2 GHz/5 GHz PA) output transformers with low loss, which is provided by using 2:2 and 2:1 output transformers for the 2 GHz PA and the 5 GHz PA, respectively. In addition, se...

A CMOS low-power four-quadrant multiplier for Ultra-Wide Band (UWB) systems using FM-UWB and Impulse Radio (IR) is presented. A set of transconductors, rather than the traditional Gilbert cell, is employed. The configuration is simple and area saving. The simulated result shows: An average gain of 22.5 dBV−1 and 20.8 dBV−1 in the bandwidth of 700 MHz at 1.2 GHz and 4 GHz center frequencies, res...

We present results from two observations of the cosmic microwave background (CMB) performed from the South Pole during the 1993-1994 austral summer. Each observation employed a 3◦ peak to peak sinusoidal, single difference chop and consisted of a 20◦ × 1◦ strip on the sky near our SP91 observations. The first observation used a receiver which operates in 3 bands between 38 and 45 GHz (Q-band) w...

Particle accelerators at X-band frequencies have been shown to reach gradients of greater than 100 MV/m [1,2]. Such technology permits more compact accelerators. One of our aims at the Colorado State University (CSU) Accelerator Laboratory is to adapt this technology to our L-band (1.3 GHz) accelerator system to increase our overall beam energy; however, we would like to do this in a passive ma...

Concentrating on the high frequency aerospace demand of solid-state power amplifier (SSPA), this paper presents methodology and key technique a W-band 3-W SSPA that achieves efficiency while maintaining excellent reliability capability. An improved Magic-T combiner is utilized to achieve output power, eliminate influence parallel end-stage gallium-nitride high-electron-mobility-transistor (GaN ...