Suppressing Undesired Common-Mode Resonances in Connected Antenna Arrays
© 2015 IEEE. This paper presents a design of an antenna feed that suppresses common-mode resonances commonly encountered in connected antenna arrays. The design makes use of symmetrical wideband microstrip-slotline transitions to cancel out common-mode signals, while differential signals will still...
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| Format: | Journal Article |
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IEEE
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/72222 |
| Summary: | © 2015 IEEE. This paper presents a design of an antenna feed that suppresses common-mode resonances commonly encountered in connected antenna arrays. The design makes use of symmetrical wideband microstrip-slotline transitions to cancel out common-mode signals, while differential signals will still propagate through. The design is verified using both simulations and measurements of a manufactured prototype. A wide bandwidth and a CMRR > 30 dB is achieved that exceeds the design specifications set out. |
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