This paper presents the design of a unique “corporate feed‐microstrip filtenna array” to be used as “radiating antenna” of a wireless system. The filtenna is a basic patch antenna fed by 50 Ohms microstrip line, loaded with complementary split ring resonators (CSRRs). When the basic patch antenna is made to resonate at 1.8 GHz, it also introduces unwanted spurious radiations appear at 2.82 and 3.46 GHz. Hence, the array of CSRR consisting of five non‐identical CSRRs are loaded, offers the required wideband rejection characteristic, solving the problem of the basic patch antenna. The five CSRRs resonate at 1.97, 2.43, 2.9, 3.28, and 3.72 GHz, offering an overall rejection band from 2 to 4 GHz is obtained. Incidentally there is a signal attenuation introduced by the passive CSRR filter. To compensate the attenuation, an array of filtenna is designed, using corporate feed configuration. The patch antenna, CSRR filter and filtenna are designed and fabricated on an epoxy flame retardant glass substrate (FR4) having a thickness 'h' of 1.6 mm, dielectric constant 'ε_r' of 4.4 and loss tangent (tan δ) of 0.02. The simulations are carried out using the HFSS software. The performance of the overall receiving filtenna system, having the size of 13.37 cm × 11.94 cm, is satisfactory. Experiments are carried out using vector network analyzer, verifying the software results. This unique radiating antenna exhibits acceptable gain and noise free reception, much required by upcoming 4G/5G wireless applications, rectenna and medical sensor applications.

中文翻译：

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使用互补开环谐振器的企业馈电短波天线阵列的设计，制造和性能分析

本文介绍了一种独特的“企业馈送-微带滤波器天线阵列”的设计，该阵列可用作无线系统的“辐射天线”。滤波器天线是一种基本的贴片天线，由50欧姆微带线馈电，并装有互补的裂环谐振器（CSRR）。当基本贴片天线在1.8 GHz处产生谐振时，还会引入在2.82和3.46 GHz处出现的不需要的杂散辐射。因此，加载了由五个不同的CSRR组成的CSRR阵列，提供了所需的宽带抑制特性，解决了基本贴片天线的问题。五个CSRR在1.97、2.43、2.9、3.28和3.72 GHz处谐振，从而获得了2至4 GHz的总抑制频带。附带地，无源CSRR滤波器会引入信号衰减。为了补偿衰减，设计了一个天线阵列，使用公司供稿配置。贴片天线，CSRR滤波器和滤波器天线是在厚度为“ h”为1.6毫米，介电常数为“ε”的环氧阻燃玻璃基板（FR4）上设计和制造的_r '为4.4，损耗角正切（tanδ）为0.02。使用HFSS软件进行仿真。尺寸为13.37 cm×11.94 cm的整个接收天线系统的性能令人满意。使用矢量网络分析仪进行实验，验证软件结果。这种独特的辐射天线展现出可接受的增益和无噪声接收，这是即将到来的4G / 5G无线应用，整流天线和医疗传感器应用所迫切需要的。