In this work, a compact, edge-fed modified rectangular patch size, monopole, and ultra-wideband antenna has been presented for their good suitability to millimeter (mm) wave and upper sub-6 GHz frequency range (FR2) for next-generation (5G and beyond) communications. The patch size enhancement approach has been utilized without affecting the original size of the substrate and rectangular patch. The technique provides better impedance matching at the designed frequency of 32.5 GHz. The minimum acceptable gain for an antenna to work well is 5 dBi. The proposed design achieves peak gain of 5.43 dBi and 10.86 dBi at two resonance frequencies of 32.5 GHz and 48.12 GHz within the specified ultra-wideband (UWB). The antenna has low loss as it is fabricated on a compact Rogers RT Duroid 5880 of thickness 1.6 mm. The measured reflection coefficients are found in good agreement with the simulated one. The resultant performance parameters like radiation pattern, reflection coefficient, peak gain, and − 10 dB bandwidth reveal that the antenna performs excellently within 26 to 40 GHz with excellent impedance matching at the resonance frequency. At higher frequencies, the time domain response of the proposed design is also presented. The RLC electrical equivalent circuit of the proposed design is presented at the end and validated using ADS software.

在这项工作中，提出了一种紧凑型、边缘馈电、改进的矩形贴片尺寸、单极和超宽带天线，因为它们非常适合下一代毫米波和 6 GHz 以下频率范围 (FR2) （5G 及以上）通信。采用了贴片尺寸增强方法，而不影响基板和矩形贴片的原始尺寸。该技术在 32.5 GHz 的设计频率下提供了更好的阻抗匹配。天线正常工作的最小可接受增益为 5 dBi。所提出的设计在指定的超宽带 (UWB) 内的 32.5 GHz 和 48.12 GHz 两个谐振频率下实现了 5.43 dBi 和 10.86 dBi 的峰值增益。该天线采用厚度为 1.6 毫米的紧凑型 Rogers RT Duroid 5880 制造，损耗低。测量的反射系数与模拟的反射系数非常吻合。辐射方向图、反射系数、峰值增益和 − 10 dB 带宽等最终性能参数表明，该天线在 26 至 40 GHz 范围内表现出色，在谐振频率下具有出色的阻抗匹配。在较高频率下，还给出了所提出设计的时域响应。最后给出了所提议设计的 RLC 电气等效电路，并使用 ADS 软件进行了验证。