{TAIL ~ The second embodiment} is based on the configuration of {HEAD ~ 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 
{ TAIL ~ The second embodiment } is based on the configuration of { HEAD ~ 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
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD 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