A Novel Metasurface Lens Design for Synthesizing Plane Waves in Millimeter-Wave Bands

Millimeter Wave Bands A

A millimeter wave antenna measurement system is presented. The frequencies of operation are around 100 GHz and 300 GHz (W/J Bands). The facility is a single reflector compact range system. Design tasks deal with the serrated reflector and the corresponding millimeter wave instrumentation design.

The Potential of Resource Sharing in 5G Millimeter-Wave Bands

With the severe spectrum shortage in conventional cellular bands, the millimeter (mmWave) frequencies, roughly above 10 GHz, have been attracting growing attention for next-generation microand picocellular wireless networks. A fundamental and open question is how these bands should be used by cellular operators. Cellular spectrum has been traditionally allocated following an exclusive ownership...

Codebook Design for Channel Feedback in Lens-Based Millimeter-Wave Massive MIMO Systems

The number of radio frequency (RF) chains can be reduced through beam selection in lens-based millimeter-wave (mmWave) massive MIMO systems, where the equivalent channel between RF chains and multiple users is required at the BS to achieve the multi-user multiplexing gain. However, to the best of our knowledge, there is no dedicated codebook for the equivalent channel feedback in such systems. ...

Millimeter-Wave Circuit Design for Radar Transceivers

Dielectric Spherical Lens Antenna for Wireless Millimeter-wave Communications

A simplified theoretical model based on geometrical optics (GO) in combination with physical optics (PO) in its vector form is used to analyze the performance of a homogeneous dielectric-sphere lens fed by a feed horn. The proposed model provides physical insight and sufficient accuracy for the initial design cycle. The computed results are also compared to measured data acquired from a prototy...