[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 2533 Antenna Q&A Related Knowledge Base Posts -[ANT] How wide should my routing of RF from module to antenna be?[ANT] How large must the ground plane be for a monopole whip antenna?[ANT] How much longer range can I get by changing form a 0dBi to 3 dBi antenna?