An Approximate Multiconductor Transmission Line Model for an Antenna Loaded by High-Impedance Unit Cells

被引：2

作者：

Soltani, Saber ^{[1
,2
]}

Dusenbury, Joseph ^{[3
]}

Kerby-Patel, K. C. ^{[3
]}

机构：

[1] Univ Massachusetts Boston, Boston, MA 02144 USA

[2] Univ Massachusetts Lowell, Elect & Comp Engn Dept, Lowell, MA 01854 USA

[3] Univ Massachusetts Boston, Dept Engn, Boston, MA 02144 USA

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2019年 / 67卷 / 06期

关键词：

Antenna theory; electromagnetic propagation; microstrip antennas; EBG REFLECTION PHASE; SURFACES; DIPOLE;

D O I：

10.1109/TAP.2019.2905739

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 transmission line model for a microstrip line or antenna above a row of high-impedance unit cells, such as those used in a high-impedance surface (HIS) ground plane. The model is built on a multiconductor transmission line circuit description of the joint microstrip and HIS cell structure as stacked microstrip lines. Discontinuities in the HIS cell layer are modeled as circuit elements using wellknown closed-form expressions. S-parameters predicted by the transmission line model agree with full-wave simulations from low frequencies to above the parallel resonance of the HIS unit cells. The model also provides an approximate forward prediction of the impedance behavior of antennas above HIS ground planes, which cannot be obtained using the reflection phase method.

引用

页码：4133 / 4140

页数：8

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