WILKINSON Benjamin Thomas John,GUNSTON Patrick Bernard
申请号：
US201615572149
公开号：
US2018131074(A1)
申请日:
2016.05.02
申请国别(地区):
美国
年份:
2018
代理人:
摘要：
An antenna apparatus includes a structure configured to mount within a stock race to permit animals to pass therethrough. One or more antenna coils are attached to or within the structure and provide a magnetic field laterally across the structure. The coils may be arranged in a Helmholtz configuration to provide a substantially uniform field in a read zone. The structure may have an open top and the side walls of the structure may be slanted forwards.
