即12. 3~12. 8 GHz。轴比小于3 d B的频率范围为12. 3~12. 7 GHz。天线的增益为12 d B
同时旁瓣电平较低(SLL)。天线阵列大小为185 mm×7. 8 mm
可用带宽为3. 2%。
Abstract
A half-mode substrate integrated waveguide( HSIW) array with circular polarization( CP) radiation is proposed. This array is composed of 8-element slots. Which HMSIW structure
the antenna profile can be reduced compared with the SIW structure. In order to achieve a HMSIW array
the specific designed elliptically polarized X-shaped slots are introduced to implement circular polarization( CP) by array coupling. Finally
the antenna is fabricated
and measured over 12. 3 ~ 12. 8 GHz. Frequency ranges of 12. 3 ~ 12. 7 GHz with axial ratio( AR) of3 d B. The measured gain is 12 d B with low side lobe level( SLL). The anrenna size is 185 mm × 7. 8 mm