This paper proposes a transmitter system based on direct antenna amplitude-shift keying
modulation for point-to-point microwave link. The proposed system is formed from a …

A planar metasurface that rotates the polarization of reflected signals by 90° is presented in
this article. The surface also permits the relative phase of the rotated, reflected signal to be …

An antenna capable of directly phase modulating a radio frequency (RF) carrier is
discussed, designed, and measured as both an antenna and a modulator. Access point …

In this paper a varactor-tunable bandstop FSS based on the four arms star geometry is
presented. Besides the resonant frequency tuning, an interesting feature is that practically …

In this paper, a novel structure of a reconfigurable Electromagnetic Band Gap (EBG) layer is
presented for direct antenna Amplitude Shift Keying (ASK) digital modulation. Therefore, the …

Direct antenna modulation (DAM), a radio transmitter technique where the RF carrier is
modulated at the antenna, can allow low-complexity implementation of antenna arrays …

A directly modulating antenna incorporating a reconfigurable Frequency Selective Surface
(FSS) for arbitrary phase modulation is designed and simulated. A 4-layer FSS is used to …