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We present an ultra-wideband antenna for mm-wave applications. The antenna consists of a bowtie patch integrated with the feeding network. The feeding network is implemented as a multilayer substrate structure. The differential excitation of the bowtie is performed in a similar way to Magneto-Electric Dipoles and Marchand baluns. The simulated antenna shows a relative bandwidth of 2.6 : 1 with a reflection...
We present two configurations of multiport antennas for Multiple-input Multiple-output (MIMO) application. The configurations are comprised of three and four dual-polarized self-grounded bowtie antenna as the element, respectively. The MIMO performance of both antennas is evaluated in Random Line-of-Sight (Random-LOS) and Rich Isotropic Multipath (RIMP) channel models as two edge propagation environments...
We present a new improved design of the self-grounded dual-polarized wideband bowtie antenna for MIMO application. The antenna is evaluated for the case when the original four ports are combined to two orthogonally polarized ports. The new antenna covers the previous bandwidth but has lower gain and wider beamwidth over the frequency band of interest. The 2×2 MIMO performance of the antenna in Random-Line...
This paper shows that a universal software radio peripheral (USRP) can be used to measure the complete passive over-the-air (OTA) performance of multiport antennas for multiple-input multiple-output (MIMO) systems. The passive MIMO OTA measurements are performed in a reverberation chamber using the USRP as a measurement instrument. The total embedded radiation efficiencies, the correlation, and the...
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