{HEAD ~ The second embodiment} is based on {TAIL ~ the configuration} of the first embodiment, and furthermore, a plurality of recesses 36 are arranged, in addition to a recess 32, on a surface of an antenna structure support 27 which faces a wall 7 a of an attachment portion 7 as shown in FIG 9 
is based on
{ HEAD ~ The second embodiment } is based on { TAIL ~ the configuration } of the first embodiment , and furthermore , a plurality of recesses 36 are arranged , in addition to a recess 32 , on a surface of an antenna structure support 27 which faces a wall 7 a of an attachment portion 7 as shown in FIG 9
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH