The planar filter 4, wherein said ground electrode leads to the other of said sides of said substrate on {HEAD ~ each} of said longitudinal sides of {TAIL ~ the planar filter} 
The planar filter 4 , wherein said ground electrode leads to the other of said sides of said substrate on { HEAD ~ each } of said longitudinal sides of { TAIL ~ the planar filter }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL