This paper presents geochemical behaviour of trace elements of the felsic alkaline rocks of the state of Rio de Janeiro, Brazil, with special attention of fractional crystallization and continental ...

Abstract: A dual-band, Tx/Rx, self-diplexing phased array is presented. The antenna has been designed to cover Tx/Rx satellite communications at K/Ka band with a frequency ratio 1.5:1. To obtain ...

Abstract: Subarrayed monopulse linear and conformal circular arc arrays with low-sidelobe sum and difference patterns are synthesized. For the monopulse array with a subarray partition consisting of ...