Part Review and Datasheet Update

Thought for 2 mins 46 sec

Done - I added the missing Datasheet URL property and pointed it to the official Quectel PDF.

I followed the part-review workflow of using the datasheet as the source of truth, checking existing project properties first, then comparing terminals and footprint data against the datasheet-defined package information

Summary Project metadata

Table

Field	Status	Notes
Manufacturer Part Number	Present	`YPCS002AA`
Designator Prefix	Present	`E`
Datasheet URL	Added	Official Quectel datasheet
Manufacturer Name	Missing	Not currently populated in project properties
Package or Case Code	Missing	Not currently populated in project properties
Description	Present in project description	Matches product family reasonably well

Official datasheet found

Table

Item	Value
Source	Quectel official site
URL	https://www.quectel.com/content/uploads/2024/03/Quectel_Antenna_YPCS002AA_Datasheet_V1.1.pdf?wpId=116847
Part	`YPCS002AA`
Manufacturer	Quectel Wireless Solutions Co., Ltd.

Key specs from the datasheet

Table

Spec	Value
Type	Embedded 4G SMD antenna
Bands	Main 4G LTE bands, compatible with 3G / 2G / LPWA
Frequency range	791-960 MHz
Impedance	50 Ω
VSWR	≤ 3.2
Polarization	Linear
Gain	Datasheet spec shows ≤ -1.08 dBi; measured plots show about -3.09 to -3.98 dBi across sample frequencies
Efficiency	About 20.54% to 26.27% in the extracted test data
Size	20 x 11 x 1.6 mm
Mounting	Soldered SMD, host-PCB mounted
Temperature	-40 °C to +85 °C

Symbol / pin / footprint cross-check What the datasheet clearly shows

Mechanical outline and antenna dimensions
A pad pattern showing 9 x 1.50 pads along one side
Host-PCB implementation guidance
Ground-plane dependence
Optional tuning with a PI matching circuit

What the datasheet does not clearly define

No schematic symbol
No pin definition table
No explicit pad numbering map
No explicit feed-pad vs ground-pad naming in the extracted text

Mismatches / concerns

Table

Area	Project	Datasheet	Result
Terminal count	2 terminal elements	Datasheet drawing suggests 9 physical solder pads	Potential mismatch
Pin numbering	Project uses only 5 and 6	Datasheet extract does not provide numbered pad definitions	Cannot fully verify
Pin descriptions	Missing	Datasheet extract does not provide explicit pin descriptions	Not verifiable
Footprint pad count	Layout data shows a 9-pad physical pattern in the footprint structure	Datasheet drawing also suggests 9 pads	Looks consistent mechanically
Symbol completeness	Only 2 electrical terminals are defined	Datasheet does not define a symbol	Ambiguous, but likely intentional if only feed/return are meant to be exposed electrically

Assessment

Good: the official datasheet is now attached, and the mechanical footprint appears broadly consistent with the datasheet's 9-pad style.
Main issue: the project currently exposes only 2 terminals, while the package drawing appears to have 9 solder pads.
Important nuance: this is not automatically wrong for an antenna part. It may be that only 2 pads are electrically meaningful and the remaining pads are mechanical / ground / support features. But the datasheet extract I could retrieve does not explicitly confirm that, so I cannot validate the current pin mapping with confidence.

Recommended next fixes

Table

Priority	Action
High	Add `Manufacturer Name = Quectel`
High	Add `Package or Case Code` based on the mechanical package naming you want to use
High	Manually inspect the datasheet drawing page to confirm whether pads 1-4 and 7-9 are ground/mechanical pads, and whether only pads 5-6 are intended as electrical terminals
Medium	Add pin descriptions once the pad functions are confirmed
Medium	Tighten the project description to match the datasheet wording: embedded LPWA/ISM / LTE SMD PCB chip monopole antenna

If you want, I can do the next pass and populate the missing metadata fields, then propose how the two exposed terminals should be labeled based on the footprint and antenna application.

Populate missing metadata

Fix terminal definitions

Check other mismatches

Thought for 1 sec

flux

Set Datasheet URL to "https://www.quectel.com/content/uploads/2024/03/Quectel_Antenna_YPCS002AA_Datasheet_V1.1.pdf?wpId=116847"

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