Antenna-in-package integrates the radiating antenna element directly into or onto the semiconductor package substrate that houses the RF chip, rather than mounting the antenna on a separate PCB or module. At millimeter wave frequencies, interconnect loss between a chip and a discrete antenna becomes a serious efficiency problem because wavelengths are short and trace losses scale up accordingly. Embedding the antenna in the package, as seen in filings like US20220209391A1, shortens that interconnect and can improve radiation efficiency and bandwidth. This is why AiP has become the dominant approach for 5G and satellite communication front-ends that need compact, high-frequency radios.

This dataset's ranked assignee list contains only four companies, and together they account for all 19 records in scope — an unusually concentrated picture for a patent landscape. The leader holds 10 of the 19 records, with the remaining three assignees splitting the rest. Because the ranking is not a top-50 or top-100 list but the complete set the data endpoint returns, a competitive review here can realistically cover every relevant portfolio rather than sampling a larger field. Recent-year momentum across all four is flat or down, which should be read against the eighteen-month publication lag rather than as a sign the technology is abandoned.

Filings peaked at six records in 2019 and the complete year-over-year figures show a 100% drop from 2021 to 2024. That said, any year after 2024 is still filling in because patent publication typically lags the actual filing date by around eighteen months, so the apparent quiet in the most recent years is partly an artefact of the data cut-off rather than confirmed inactivity. A team assessing whether to enter this space should weight the 2019–2024 trend more heavily than the most recent one or two years shown in any chart.

The bulk of records, 84.2% of the 19 in scope, carry the H01Q antenna classification, but a large share also carry H01L (semiconductor devices) or H01P (waveguides and microwave elements) at 42.1% each. Because a single patent can carry multiple IPC classes, these figures add up to more than 100% and should not be read as mutually exclusive categories. The overlap between antenna, semiconductor and waveguide classes is itself the signal: most of the inventive activity in this field sits at the mechanical and electrical interface between the die and the radiating structure, not in antenna geometry considered on its own.

Several IPC classes appear on only a single record each in this dataset, including G06N (AI-based computing), C25D (electroplating and electroforming), B23K (welding, soldering and brazing) and H10N (other solid-state devices). Each represents a specific manufacturing or design overlap — electroplated via structures, solder joints for embedded antennas, AI-assisted feed-transition tuning — that has barely been claimed relative to the core H01Q, H01L and H01P classes. These low counts are a reasonable starting point for a novelty search before drafting a first claim in one of those adjacent areas, though a full clearance search should always be run against the complete portfolios of the four ranked assignees first.