Analysis and design of novel dual-band b
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Changjiang You; Xiaowei Zhu
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Article
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2009
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John Wiley and Sons
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English
⚖ 364 KB
👁 1 views
## Abstract This article presents the novel dual‐band planar 90° branch line coupler with patterned ground plane, sometimes referred to as ‘defected ground structure.’ In the new layout, two cross coupling branches are added to the conventional branch line coupler. The additional branches make the