A reconfigurable decoupling and matching network for a frequency agile compact array

Yong Cai*, Y. Jay Guo

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

5 Citations (Scopus)

Abstract

A novel frequency reconfigurable compact array incorporating a reconfigurable decoupling and matching network (DMN) is proposed. The array radiating part consists of two printed monopole antennas. An inductive biasing line is devised to control the PIN diode states so that the array operating frequency is switchable between 2.5 and 3.5 GHz bands. The element spacing is chosen to be as small as 0.050 at 2.5GHz, which leads to a strong mutual coupling between antenna ports. A reconfigurable DMN is proposed to mitigate the mutual coupling effect for both 2.5 and 3.5GHz bands. Simulation results show that the use of the DMN realizes a well matched (S11 <= -10dB) and decoupled (S21 <= -20dB) bandwidth of 70MHz and 120MHz in the lower and higher bands, respectively. The antenna total efficiency can be substantially affected by the internal resistor when the PIN diodes are in the ON state. The compact size and frequency reconfigurability feature greatly save the antenna real estate. The decoupled array can be useful for a multi-input multi-output (MIMO) diversity system.

Original languageEnglish
Title of host publicationEUCAP 2011
Subtitle of host publicationProceedings of the 5th European Conference on Antennas and Propagation
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages896-899
Number of pages4
ISBN (Electronic)9788882020743, 9788882020743
ISBN (Print)9781457702501
DOIs
Publication statusPublished - 2011
Externally publishedYes
Event5th European Conference on Antennas and Propagation, EUCAP 2011 - Rome, Italy
Duration: 10 Apr 201115 Apr 2011

Other

Other5th European Conference on Antennas and Propagation, EUCAP 2011
CountryItaly
CityRome
Period10/04/1115/04/11

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