Guerrilla RF 

5G represents the next evolutionary step in wireless telecommunications infrastructure and is poised to deliver dramatic improvements in capacity, bandwidth, and latency.
This article addresses these specific design constraints by providing a detailed comparison between the two basic antenna module configurations.
Optimized to deliver excellent P1dB, ACLR and IM3 performance over the 800 to 900 MHz band.
Guerrilla RF - GRF2013 - Gain Block
Available now from Richardson RFPD, three of the newest devices from Guerrilla RF—a high-linearity gain block and ultra-low noise amplifier for small cell/wireless infrastructure applications, and a high-frequency power-LNA™ for 802.11ac 5 GHz PA/driver applications.