Hey yenna,
I tried to create a query for this scenario.
I used Release Start date below as an example. If you want a specific period, then you can do "> certain date and < some other date" to get what you want.
You can use this in a Custom List that shows defects.
(Requirement.PortfolioItem.Release.ReleaseStartDate > "2018-05-22T23:59:59.000Z")
Do let me know if this worked.
Regards,
Niveditha