A millimeter-wave (mm-wave) dual-strip coupled dual-patch antenna is proposed, which is achieved by high density interconnect antenna-in-package process. The dual patches and dual strips are closely placed on the same layer and produce two resonances with broadside radiation and x -direction polarization. Compared with the state-of-the-art single-layer patch antennas, the proposed antenna can achieve both compact radiator size and wide bandwidth, which is useful to form mm-wave array. Furthermore, the antenna radiator and the feedline are separated by the antenna ground to decrease the interaction from radio frequency components in the active system. Characteristic mode analysis method is utilized to analyze the antenna element to reveal the modal behavior of the proposed antenna. For demonstration, a prototype of 2 × 4 array is fabricated, which has the antenna element size of 0.36 × 0.37 × 0.05 λ ₀ ³ ( λ ₀ is the operating wavelength at 26 GHz in free space), the 10 dB impedance matching bandwidth of 20.6% (22.7–27.9 GHz), and the peak gain of 14.2 dBi.

中文翻译：

---

适用于毫米波AiP应用的紧凑型双带耦合双贴片天线

提出了一种毫米波（mm-wave）双条耦合双贴片天线，这是通过高密度互连封装天线工艺实现的。双重贴片和双重条带紧密放置在同一层上，并在宽边辐射和共振下产生两个共振。X 方向极化。与现有技术的单层贴片天线相比，所提出的天线既可以实现紧凑的辐射体尺寸，又可以实现宽带宽，这对于形成毫米波阵列很有用。此外，天线辐射器和馈电线被天线接地分开，以减少与有源系统中射频组件的相互作用。利用特征模式分析方法对天线元件进行分析，以揭示所提出天线的模态行为。为了演示，制作了2×4阵列的原型，其天线元件尺寸为0.36×0.37×0.05λ ₀ ³（ λ ₀是自由空间中26 GHz的工作波长），10 dB阻抗匹配带宽为20.6％（22.7–27.9 GHz），峰值增益为14.2 dBi。