[ANT] I have an existing 2.4GHz design. Now I want to change to an 868 MHz solution. Can I reuse the antenna? No, the antenna made for 2.4 GHz will perform very bad at 868 MHz Last Update: August 8, 2017 January 11, 2017 1938 Antenna Q&A Related Knowledge Base Posts -[ANT] Can I use an external antenna on my product and feed RF from PCB to housing in a coax cable?[ANT] I have a question about which 868 MHz antenna to use. Which antenna do you recommend.[ANT] How can I optimize my antenna performance?