Abstract: This paper presents a miniaturized helical antenna with a high permeability core. The proposed antenna functions at 3.35 GHz, with return loss of less than -10 dB and gain of 9.39 dBi. The ...

Abstract: This paper proposes the design method of utilizing mixed couplings theory between resonators with various antenna validations presented and discussed. Due to the mixed couplings excited ...

After analysing the data of the Low Frequency Array (LOFAR) Telescope, the amateur astronomers of the RAD@home Astronomy Collaboratory came up with an extraordinary discovery. The odd double ring ...