Mac doesn't find iPad to use Airdrop
I've got an iMac with Yosemite and an iPad Air2. I'd like to use Airdrop to send files from my Mac to iPad and I've activated Airdrop to be used by everyone on my iPad. When I go to Airdrop on my Mac however. My iPad device isn't found. Am I doing something wrong? Shouldn't my iPad appear in the Airdrop finder window?
OS X Yosemite (10.10)