From Embedded Antenna Design: "LPO antenna enhanced supporting 450 MHz"
About Symmetry Electronics Team
The EAD LPO antenna enhanced supporting 450 MHz for LTE 450 applications is now available. With 2 x LTE elements and 2 x WiFi elements, the LPO45727 is ideal for running 700-2700 MHz LTE alongside LTE 450 services.
EAD has used the modular LPO platform to bring this new offering to market. It is a compact design for a multiband antenna solution and is through-hole mount for permanent installation. The LPO has a gasket underneath for an IP67 waterproof deployment and is fed by 4 cables from underneath.
An alternative 450 MHz antenna is our VLP4.
For more information on the LPO45727, please contact us.
If you require a variation of the LPO antenna, please contact us to see if we can develop it for you.
Source: https://www.ead-ltd.com/news/lpo-antenna-enhanced-supporting-450-mhz