Frequency and circular-polarization switchable microstrip antenna for dynamic spectrum allocation

被引：0

作者：

Pyo, Seongmin ^{[1
]}

Jo, Han-Shin ^{[1
]}

Park, Sung-Ho ^{[2
]}

Park, Jong-Sung ^{[3
]}

Lee, Hyungjoo ^{[3
]}

机构：

[1] Hanbat Natl Univ, Daejeon, South Korea

[2] Datasolut Inc, Seoul, South Korea

[3] Agcy Def Dev, Daejeon 34186, South Korea

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2018年 / 60卷 / 11期

关键词：

circular polarization and switchable ground slot; microstrip antenna; reconfigurable antenna; COGNITIVE RADIO; COEXISTENCE;

D O I：

10.1002/mop.31470

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：

This article presents a novel frequency-reconfigurable microstrip antenna supported with an opposite circular polarization sense for dynamic spectrum allocation. The degenerate TM10 and TM01 frequencies are designed by using the distinctly separated electrical delay depending on the H-shaped slot along the feeding positions for generating circularly polarized waves. In addition, the circularly polarization sense is controlled by changing the status of the pin diode because the switched vertical path affects only TM10 frequency without changing horizontal TM01 frequency. To verify the feasibility of the proposed antenna, the conceptual equivalent circuit is established and the experimental validation is carried out. The implemented antenna successfully demonstrates frequency-reconfigurable capability with opposite circular polarizations and shows a good agreement with the simulation results.

引用

页码：2753 / 2759

页数：7

共 11 条

[1]

Cabric D., 2006, IEEE Circuits and Systems Magazine, V6, P30, DOI 10.1109/MCAS.2006.1648988

[2] Microstrip antenna using H-slotted ground structure for orthogonally polarized dual-band operation [J].