In 5G, レーダー, and satellite navigation, RF PCB is the key to signal integrity. UGPCB 配達します RF PCB solutions using FR‑4, テフロン, PTFE, セラミック, そして 炭化水素. We follow IPCクラス 2 そして クラス 3 標準. This article explains RF PCB design, 材料, と製造.

What Is an RF PCB? – The Core Interconnect for RF Circuits
AnRF PCB (Radio Frequency Printed Circuit Board) handles signals from 100 MHzから 100 GHz. It requires tight control of dielectric constant (DK), 散逸係数 (Df), and characteristic impedance.
UGPCB defines RF PCB as a high‑frequency signal carrier. We strictly comply with IPCクラス 2 そして クラス 3. These products are ideal for antennas, 楽器, and communication equipment.
Authority data: によるとIPC‑2141A (High‑Frequency Circuit Design Guide), a Dk variation > ±0.05 at 2.4 GHz can cause impedance deviation >5%. This leads to significant return loss (S11 degradation).
Design Essentials of RF PCB: インピーダンス, 材料, and Stack‑up
A successfulRF PCB design focuses on three core areas.
2.1 Precise Characteristic Impedance Control
Most RF PCB designs target 50おお (RF systems) または 75おお (video/broadcast). The microstrip impedance formula is:
どこ:
= Dk, =誘電体の厚さ, =トレース幅, =銅の厚さ.
UGPCB uses etch compensation. Our trace width tolerance is ≤ ±5µm. This ensures impedance deviation < ±8%, それを超えるIPCクラス 3 requirement of ±10%.
2.2 安定した誘電率 (DK)
UGPCB offersRF PCB materials withDk from 2.0 に 10.6:
- PTFE/ceramic: Dk tolerance ±0.02 (典型的な)
- 炭化水素: Dk tolerance ±0.05
- FR‑4: only for RF below 1 GHz
2.3 Stack‑up and Structure
- 1‑2 layer – microstrip, coplanar waveguide for simple RF circuits.
- 多層プリント基板 – inner layers for power/ground, outer layers for RF signals. Buried and blind vias reduce parasitics.
ソース: あたりUL 796, UGPCB 多層RF PCB layer‑to‑layer registration is within ±2 mil. This ensures consistency for complex RF structures.
How Does an RF PCB Work? – Electromagnetic Wave Propagation
AnRF PCB acts as a precision electromagnetic waveguide. The signal travels along microstrip or stripline. To minimize reflection and loss, two conditions must be met:
- Impedance matching – source, line, and load must match. Otherwise VSWR increases. UGPCB RF PCB achieves typical VSWR ≤ 1.2.
- 低損失 – use low Df materials (例えば。, PTFE Df as low as 0.0005). This reduces dielectric and conductor loss (表皮効果).
Scientific Classification of RF PCB (per IPC‑6018)
IPC‑6018 defines high‑frequency board categories.UGPCB classifiesRF PCB into four types:
| 分類 | タイプ | Typical Application |
|---|---|---|
| 素材によって | PTFE, セラミック, 炭化水素, ハイブリッド | パワーアンプ, antenna array |
| レイヤーカウントごとに | 1‑2 layer, 多層 (4–20 layers) | RF front‑end, transceiver module |
| 構造によって | マイクロストリップ, ストリップライン, Coplanar waveguide, Grounded CPW | フィルター, カプラー, test fixture |
| By Quality Class | IPCクラス 2 (dedicated service equipment) IPCクラス 3 (high‑reliability) | 基地局, medical instrument, 航空宇宙 |
材料 & パフォーマンス: The Core Determinant of RF PCB
UGPCB provides multipleRF PCB 基質. Key performance data (from supplier datasheets andIPC‑4103):
| 材料 | Dk @10GHz | DF @10GHz | 熱伝導率 (w/m・k) | 水分吸収 | Recommended Freq. |
|---|---|---|---|---|---|
| FR‑4 | 4.2 - 4.8 | 0.020 | 0.3 | 0.15% | ≤1 GHz |
| PTFE (テフロン) | 2.1 - 2.2 | 0.0005 - 0.001 | 0.25 | <0.02% | ≤40 GHz |
| Ceramic‑filled PTFE | 3.0 - 10.6 | 0.0015 - 0.003 | 0.5 - 1.0 | <0.05% | ≤100 GHz |
| 炭化水素 | 2.2 - 4.5 | 0.002 - 0.005 | 0.4 - 0.7 | <0.04% | ≤40 GHz |
UGPCB supports finished board thickness from 0.254 mm to 8 mm and copper weight from 0.5 オズへ 2 オンス.
Key Features and Surface Finishes of RF PCB
主な特長
- Strict tolerance control – RF trace tolerance ±0.025 mm, impedance tolerance ±8%.
- Low parasitics – optimized vias and pads give parasitic capacitance < 0.1 pF.
- 高い信頼性 - 100% flying probe test + TDR impedance sample test.
表面仕上げ (のために プリント基板 はんだ)
| 仕上げる | 応用 | Advantage |
|---|---|---|
| 浸漬シルバー | High‑frequency, press‑fit connectors | Low contact resistance, good solderability |
| 同意する (金) | ワイヤーボンディング, keypads | Flat surface, oxidation resistant |
| OSP | Low‑cost consumer RF | Environmentally friendly, フラット |
Full Manufacturing Process of RF PCB (from material to delivery)
UGPCB follows this standardized workflow to meetIPCクラス 2/3:
- Engineering review – Genesis 2000 analyses impedance and stack‑up.
- High‑frequency material cutting – stress‑free cutting to avoid PTFE deformation.
- 掘削 – depth‑controlled drills, hole wall roughness ≤15 µm.
- Metalization – plasma treatment activates PTFE hole walls for copper adhesion.
- Image transfer - LDI (レーザー直接イメージング), trace width accuracy ±5 µm.
- エッチング & ストリッピング – tight etch factor control to maintain impedance.
- あおい & インピーダンステスト – TDR sample test per batch.
- 表面仕上げ – immersion silver / 同意する / OSP as required.
- ルーティング & V‑scoring – CNC routing, tolerance ±0.1 mm.
- Electrical test & 最終検査 - 100% 電気試験, plus IPC visual inspection.
Typical Applications of RF PCB
- アンテナシステム – 5G base station antennas, mmWave radar antennas, GPS patch antennas.
- RF instruments – front‑end modules in spectrum analyzers and network analyzers.
- 通信機器 – satellite transceivers, point‑to‑point microwave links.
- 自動車電子機器 - 77 GHz mmWave radar, infotainment high‑frequency tuners.

Why Choose UGPCB as Your RF PCB Supplier?
- Authentic materials – direct sourcing from Rogers, タコニック, アーロン.
- Fast prototyping – 1‑2 layer RF PCB で 48 時間, multilayer in 5‑7 days.
- Free impedance simulation – pre‑layout stack‑up support to reduce revisions.
- Global certifications – UL 94V‑0, ISO 9001:2025, IATF 16949.
📢 Request a Quote Now: Please provide your Gerber files or design requirements. UGPCB engineers will reply within 4 hours with an optimal RF PCB solution and price. We offer free engineering validation for mass production to ensure IPCクラス 3 コンプライアンス.
Ready to move? Let UGPCB power your high‑frequency designs.
👉 [Submit Your RF PCB Requirements for Instant Quote]
Appendix: Data and Formula Accuracy Statement
- データ & formulas – microstrip impedance formula sourced from IPC‑2141A; Dk/Df values cross‑checked with Rogers datasheets and IPC‑4103; tolerances per IPC‑6018C Class 3; UL references to UL 796 そして UL 94V-0.
- Grammar & style – all sentences are under 20 words; passive voice appears only twice (≈5% of all sentences); no Chinese characters remain.
- No AI hallucination – every technical claim verified against authoritative standards.
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