{
  "annotation_id": "1b5194f7-8a47-4742-a184-b449a73006f0",
  "date_created": "2026-03-02T18:01:11.081000Z",
  "date_modified": "2026-03-02T18:01:11.081000Z",
  "file_hash": "ee64d78e6c30ee63c12b2edd736c31f1e891231a6acd429c4b149bed7becdde3",
  "private": false,
  "record": {
    "abstract": "In this paper we study microstrip antenna miniaturization using partial\nfilling of the antenna volume with dielectric materials. An analytical\nexpression is derived for the quality factor of an antenna loaded with a\ncombination of two different materials. This expression can be used to optimize\nthe filling pattern for the design that most efficiently retains the impedance\nbandwidth after size reduction. Qualitative design rules are given, and a\nminiaturization example is provided where the antenna performance is compared\nfor different filling patterns. Results given by the analytical model are\nverified with numerical simulations and experiments.\n  Key words: Microstrip antenna, miniaturization, partial filling, impedance\nbandwidth, quality factor.",
    "arxiv_id": "physics/0607133",
    "authors": [
      "Olli Luukkonen",
      "Pekka Ikonen",
      "Sergei Tretyakov"
    ],
    "categories": [
      "physics.class-ph"
    ],
    "journal_ref": "Microwave and Optical Technology Letters, Vol. 49, No. 1, pp.\n  155-159, 2007.",
    "title": "Microstrip antenna miniaturization using partial dielectric material   filling",
    "url": "https://arxiv.org/abs/physics/0607133"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e1850536-c289-4bd6-a4d8-fc6c1cc047e3",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}