Epoxy resin (ER) composites reinforced with micro-sized oil palm empty fruit bunch (OPEFB) were fabricated to improve the biodegradability of electromagnetic interference connector gasket. The dielectric properties, transmission coefficient | S ₂₁ |, reflection coefficient | S ₁₁ |, reflection loss, power loss and shielding effectiveness were studied at a frequency range of 8–12 GHz. OPEFB–ER composites were prepared by varying the percentages of OPEFB (0, 5, 10, 15, 20, 25, 30 and 40%) at room temperature (25°C ±2). Dielectric constant ( ɛ ′), loss factor ( ɛ ″), reflection and transmission coefficients of the composites were measured using rectangular waveguide connected to vector network analyser. In addition, ɛ ′ and ɛ ″ were used in finite element method technique to obtain | S ₁₁ | and | S ₂₁ |. The results showed that the dielectric properties increased but | S ₁₁ | and | S ₂₁ | decreased with increasing OPEFB percentage in the composites. The shielding effectiveness, power loss and reflection loss increased with increasing OPEFB percentage in the composites. The simulated and measured results of | S ₁₁ | and | S ₂₁ | were in good agreement.

中文翻译：

---

矩形波导和有限元法对微细OPEFB增强环氧树脂的实验和计算研究

制备了用微尺寸油棕空果束（OPEFB）增强的环氧树脂（ER）复合材料，以提高电磁干扰连接器垫片的生物降解性。介电性能，传输系数| 小号 ₂₁ |，反射系数| 小号 ₁₁ |，在8–12 GHz的频率范围内研究了反射损耗，功率损耗和屏蔽效果。通过在室温（25°C±2）下改变OPEFB的百分比（0％，5％，10％，15％，20％，25％，30％和40％）来制备OPEFB-ER复合材料。介电常数 （ ɛ ''），损耗因子（ ɛ ”），使用连接到矢量网络分析仪的矩形波导测量复合材料的反射和透射系数。此外，ɛ '和 ɛ ”被用于有限元方法中获得| 小号 ₁₁ | 和 小号 ₂₁ |。结果表明，介电性能提高，但| 小号 ₁₁ | 和 小号 ₂₁ | 随着复合材料中OPEFB百分比的增加而降低。复合材料的屏蔽效率，功率损耗和反射损耗随OPEFB百分比的增加而增加。|的模拟和测量结果 小号 ₁₁ | 和 小号 ₂₁ | 意见一致。