That will return all tables with suffix YYYYMM where YYYYMM represent every month of the current calendar quarter.
SELECT t.name
FROM sys.tables t
JOIN (SELECT '%' + CAST(QFM + m AS VARCHAR) AS QM
FROM ( SELECT CAST(YEAR(GETDATE()) AS VARCHAR(4))
+ RIGHT('0' + CAST(DATEPART(QUARTER,GETDATE()) * 3 AS VARCHAR(2)),2) AS QFM ) q
CROSS JOIN (SELECT 0 m UNION ALL SELECT 1 m UNION ALL SELECT 2 m) m
) qm3
ON t.name LIKE qm3.QM