A Novel Transition from Grounded Coplanar Waveguide to Substrate Inte grated Waveguide for 60 GHz Radio-over-Fiber Photonic Transmitters

被引:0
作者
Flammia, Ivan [1 ]
Khani, Besher [1 ]
Stohr, Andreas [1 ]
机构
[1] Univ Duisburg Essen, Ctr Semicond Technol & Optoelect, Duisburg, Germany
来源
PROCEEDINGS OF 13TH CONFERENCE ON MICROWAVE TECHNIQUES (COMITE 2013) | 2013年
关键词
60; GHz; grounded coplanar waveguide; photonic transmitter; Radio-over-Fiber; substrate integrated waveguide; SIW; transition; V band;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We present a novel transition from grounded coplanar waveguide (GCPW) to substrate integrated waveguide (SIW), designed on a ROGERS 5880 laminate for 60 GHz Radio-over-Fiber (RoF) photonic transmitters. The transition serves as connection between a 60 GHz photodiode (PD) chip and a suitable SIW antenna. In contrast to previous designs, our approach makes use of a quarter-wave coupled-lines (CL) section to transfer the signal carried by the GCPW to the SIW. This technique, creating a DC-block between the GCPW signal track and the ground layers, allows for correctly biasing the PD. In order to reduce the propagation of parasitic modes as well as the risk of interferences, the transition is fully enclosed by a fence of via holes. Simulations show that in the whole 57-64 GHz band, the return loss (RL) is higher than 17 dB, while the insertion loss (IL) is similar to 0.4 dB. To prevent the loss of RF power through the DC path, a planar RF-choke (RL > 22 dB, IL < 0.4 dB and RF-to-DC isolation (IS) higher than 28 dB) is additionally integrated.
引用
收藏
页码:73 / 76
页数:4
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