Get all week number by given year using SQL Server

Get all week number by given year using SQL Server

DECLARE @Year char(4), @iValue TINYINT, @Month tinyint

--//Populate your parameter values

 SET @Year = '2018';

SELECT DATEPART(wk,DATEADD(wk,t2.number,@Year)) as Weeknumb,( SELECT DATENAME(month, DATEADD(month,  month(DATEADD(wk,t2.number,@Year + '/01/01')), -1 ))) AS Month

FROM master..spt_values t2

WHERE t2.type = 'P'

AND t2.number <= 255

AND YEAR(DATEADD(wk,t2.number,@Year))=@Year