Aug 11 (Reuters) - Joby Aviation said on Tuesday it would buy defense technology ‌company Resonant Sciences for about $500 million, as ‌it looks to scale its business in a growing ​defense market. Electric vertical take-off and landing aircraft (eVTOL) companies are focusing more on the military market amid ramped-up defense spending driven by wars in ‌Ukraine and the ⁠Middle East. Here are some more details:• Shares of Santa Cruz, California-based Joby ⁠fell 6.5% in premarket trading. • Joby expects to fund the deal with about $450 million in ​cash ​and $50 million in its ​common stock. • ‌Upon closing, Resonant will become ​Joby's dedicated ​defense business and include its hybrid aircraft and autonomy technologies, while Joby's commercial aircraft ​business will ‌remain focused on its electric air taxi ​initiatives.