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Non-uniform excitation for the series end-fed 1\u2009\u00d7\u200910 array antenna is optimized in simulation achieving a modified Dolph\u2013Chebyshev distribution, which provides improved performance in terms of beam width, Side-lobe level and Gain. Commercial RO3003 and eco-friendly polypropylene (PP) are considered as substrates for comparison purposes, being the PP electromagnetically characterized for the first time at such high frequencies. Consistent agreement between simulation and measurement results is achieved for antenna prototypes on both dielectrics. The impedance matching bandwidth is analysed for the antenna on PP also under bent conditions. The overall size of the compact, low-cost, eco-friendly and flexible antenna on PP is 98.68\u2009\u00d7\u200914.4\u2009\u00d7\u20090.52\u00a0mm3<\/jats:sup> and, according to literature survey, it overcomes the state of the art on wearable radar antennas at 24\u00a0GHz.<\/jats:p>\n Graphical Abstract<\/jats:bold><\/jats:p>","DOI":"10.1007\/s11276-023-03533-z","type":"journal-article","created":{"date-parts":[[2023,10,16]],"date-time":"2023-10-16T14:02:06Z","timestamp":1697464926000},"page":"867-882","update-policy":"http:\/\/dx.doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["PP-based 24\u00a0GHz wearable antenna"],"prefix":"10.1007","volume":"30","author":[{"ORCID":"http:\/\/orcid.org\/0000-0002-2881-970X","authenticated-orcid":false,"given":"Mar\u00eda Elena","family":"de Cos G\u00f3mez","sequence":"first","affiliation":[]},{"given":"Humberto","family":"Fern\u00e1ndez \u00c1lvarez","sequence":"additional","affiliation":[]},{"given":"Fernando","family":"Las-Heras Andr\u00e9s","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2023,10,16]]},"reference":[{"issue":"11","key":"3533_CR1","doi-asserted-by":"publisher","first-page":"3047","DOI":"10.1109\/TIM.2012.2202169","volume":"61","author":"L Scalise","year":"2012","unstructured":"Scalise, L., et al. 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