Circular array with displaced phase reference

[Treatment of Displaced Patellar Fractures with Multiple Circular Cerclage].

PURPOSE OF THE STUDY The study aims to conduct a mid-term evaluation of results of the treatment of patellar fractures with multiple circular cerclage. MATERIAL AND METHODS The retrospective clinical study with its own group of patients who underwent surgery in our centre in the period from 2008 to 2014. The study included a total of 29 patients with displaced patellar fractures treated with mu...

Circular array STAP

X-ray micro-CT with a displaced detector array.

Because the sizes of samples differ in x-ray micro-CT applications, it is desirable to have a mechanism to change the field of view of a micro-CT scanner. A well-known way to double the diameter of the field of view is to displace a detector array by 50%. In this paper, we propose to displace a detector array by an amount of greater than 0% but less than 50% for a continuously adjustable field ...

Phased array antenna using MEMS phase shifter

This article presents a phased array antenna employing MEMS phase shifter. The proposed phased array antenna consists of eight square patch antennas operating at 10.4 GHz with a bandwidth of 400 MHz. Feed line for each patch passes through a MEMS phase shifter realized by a series of bridges above the transmission line. The distance between the bridge and the transmission line underneath it is ...

Phased Array Radar Data Processing Using Adaptive Displaced Phase Centre Antenna Principle

Employing the autoregressive (AR) technique and the principle of displaced phase centre antenna (DPCA) we construct an optimum adaptive DPCA processor for moving target detection from airborne phased arrary radar data collected under nonDPCA conditions. It is fundamentally different from the existing adaptive DPCA which is not optimum. The number of range samples it needs to estimate its parame...