GP2S+ - 2-Way MMIC Power Splitter 800-2100 MHz | Mini-Circuits
부품 번호: GP2S+ ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $5.95 | $5.95 |
| 10 | $5.36 | $53.60 |
| 100 | $4.78 | $478.00 |
| 500 | $4.3 | $2,150.00 |
| 1,000 | $3.84 | $3,840.00 |
| 3,000 | $3.42 | $10,260.00 |
GP2S+ 개요
A power splitter/combiner is a passive RF component that divides an input signal into two equal-amplitude, equal-phase outputs (splitter mode) or combines two coherent signals into a single output (combiner mode). The GP2S+ sits in the hierarchy of RF passives -> power dividers/splitters -> MMIC-based splitters -> DC-pass splitters. The DC-pass capability allows DC bias to flow through the input port to both output ports, simplifying active antenna or amplifier bias-tee designs by eliminating external inductors.
Key features include a wideband 800-2100 MHz operating range suitable for all major cellular bands (GSM, CDMA, WCDMA, LTE), a low typical insertion loss, and excellent amplitude/phase balance across the full band. The MMIC die is mounted in a Mini-Circuits-style exposed-pad QFN package that provides a low thermal path and a small PCB footprint. As an RoHS-compliant surface-mount device, it is compatible with modern reflow assembly processes.
The GP2S+ is built on a GaAs MMIC process internally matched to 50 ohms, eliminating the need for external matching components. The internal resistors absorb the inherently lost third port of a Wilkinson-style divider, providing high isolation between output ports without external components. The exposed-pad package design ensures stable ground reference and adequate heat dissipation.
Typical applications include in-building wireless (DAS) repeaters, cellular base-station signal distribution, RFID reader antenna networks, satellite upconverter local-oscillator distribution, and test-and-measurement signal splitting. The 50-ohm, 2-way topology makes it a natural fit for any application that needs to feed two antennas or two receiver paths from a single source.
When designing with this part, note the 12-VQFN footprint requires careful PCB layout with continuous ground under the exposed pad for thermal and RF performance. Bypass any DC feed with a suitable RF choke and DC-blocking capacitor combination as needed for the specific bias-tee topology.
This page synthesizes distributor pricing, drop-in MMIC splitter alternatives in the same 12-VQFN footprint, and practical PCB design notes that go beyond the manufacturer datasheet.
드롭인 대체품: GP2S+ — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: GP2S+ (동일 폼 팩터 및 풋프린트) — 차이점: Frequency Range, Package, Function, RoHS Status, Technology.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
GP2SA+
✅ 드롭인✓ 재고 있음
$2.75 / 개
데이터시트 보기 →GP2S+CAL
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
GP2S+TR
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
GP2S+ 사양 (제조사 공개)
| Product Type | 2-Way MMIC Power Splitter/Combiner |
| Frequency Range | 800 MHz to 2.1 GHz |
| Number of Ports | 2 (1 input, 2 outputs) |
| Nominal Impedance | 50 ohms |
| Isolation (Min) | 17 dB |
| VSWR (Typ) | 1.2 |
| Phase Imbalance (Max) | 4 degrees |
| DC Pass | Yes (DC routed from input to both outputs) |
| 패키지 | 12-VQFN Exposed Pad |
| 실장 유형 | Surface Mount |
| RoHS | Compliant |
| 토폴로지 | MMIC Wilkinson-style divider |
| Process Technology | GaAs MMIC |
| Operating Mode | Splitter or Combiner (bidirectional) |
| Application Band | Cellular / PCS / DCS / 3G / 4G |
GP2S+ 핀 구성
| 핀 1 | GND — Ground |
| 핀 2 | GND — Ground |
| 핀 3 | OUT1 — RF Output Port 1 (DC pass) |
| 핀 4 | GND — Ground |
| 핀 5 | GND — Ground |
| 핀 6 | OUT2 — RF Output Port 2 (DC pass) |
| 핀 7 | GND — Ground |
| 핀 8 | GND — Ground |
| 핀 9 | GND — Ground |
| 핀 10 | IN — RF Input Port (DC pass) |
| 핀 11 | GND — Ground |
| 핀 12 | GND — Ground |
일반적인 애플리케이션
GP2S+ 적합 용도: 6 애플리케이션s: In-Building Wireless DAS Signal Distribution, Cellular Base Station Feeder Networks, RFID Reader Antenna Multiplexing, Satellite Upconverter LO Distribution, Test & Measurement Signal Splitting, Phased Array / Diversity Combining.
In-Building Wireless DAS Signal Distribution
The GP2S+ is a natural fit for in-building distributed antenna system (DAS) signal distribution because its 800-2100 MHz range covers all commercial cellular bands (700/800/900/1800/1900/2100 MHz) in a single passive component. The 17 dB isolation prevents inter-path interference between the two output branches feeding separate coverage antennas, while the DC-pass capability allows DC bias to ride on the same coaxial cable, simplifying remote LNA powering. With 1.2 typical VSWR and 50-ohm internal matching, the part drops directly into a 50-ohm PCB microstrip trace with no external matching network, keeping the DAS node PCB compact.
추천
Cellular Base Station Feeder Networks
The GP2S+ splits the base-station transceiver output to feed two sector antennas or two carriers from a single PA chain, leveraging its 800-2100 MHz wideband coverage to support GSM, WCDMA, and LTE simultaneously. The 4 degree phase imbalance specification ensures that both antenna branches remain phase-coherent, which is critical for MIMO and beamforming downlink modes where phase mismatch across branches degrades effective isotropic radiated power (EIRP). The MMIC Wilkinson-style topology absorbs the unused third port internally, so no external 100-ohm resistor is required on the PCB.
추천
RFID Reader Antenna Multiplexing
In UHF RFID reader designs operating at 866-960 MHz, the GP2S+ enables a single reader IC to drive two antennas for improved read-zone coverage. The 17 dB isolation prevents cross-talk between the two antennas that would otherwise cause read-range nulling in the overlap region, while the DC-pass feature allows DC bias to feed active RFID antennas directly through the splitter port. The 12-VQFN exposed-pad package is small enough to mount at the antenna feed point on the reader board, keeping the trace lengths to both antennas short and balanced.
추천
Satellite Upconverter LO Distribution
The GP2S+ distributes the local-oscillator (LO) signal in a satellite upconverter block from a single synthesizer to two mixer paths (for example, I and Q channels or two polarization feeds). The 1.2 typical VSWR at 800-2100 MHz ensures that LO drive level stays flat across both mixer branches, which directly impacts sideband suppression and carrier leakage in the upconverted output. The 50-ohm MMIC input impedance matches directly to standard PLL synthesizer output stages without an external buffer, reducing the BOM count in dense satellite payload PCB designs.
추천
Test & Measurement Signal Splitting
Production test racks use the GP2S+ to split a single signal-generator output to feed two instruments or two test stations simultaneously, leveraging its 17 dB port-to-port isolation to prevent measurement crosstalk. The 4 degree phase imbalance and amplitude balance specifications are tight enough for most cellular conformance test setups where mismatch between DUT paths would otherwise create A-vs-B measurement artifacts. The DC-pass feature also enables splitter-based power-meter calibration setups where DC bias must reach the sensor head.
추천
Phased Array / Diversity Combining
In diversity-combining receiver architectures, two antennas feed signals into the GP2S+ output ports to combine into a single receiver chain, where the splitter's bidirectional reciprocal behavior gives 17 dB isolation between the two antenna feeds. This isolation prevents one antenna's noise figure from being degraded by the other antenna's thermal noise when both signals are summed, improving the combined SNR by up to 3 dB at low signal levels. The compact 12-VQFN footprint allows the combiner to be placed close to the antenna feed points on small-form-factor diversity modules.
추천
추천 제품 요약
엔지니어링 참조 데이터: GP2S+ — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | GP2SA+ | GP2S+CAL | GP2S+TR |
|---|---|---|---|---|
| Package | 12-VQFN Exposed Pad | 12-VQFN Exposed Pad - same | 12-VQFN Exposed Pad - same | 12-VQFN Exposed Pad - same |
| Brand | Mini-Circuits | Mini-Circuits | Mini-Circuits | Mini-Circuits |
| Frequency Range | 800 MHz to 2.1 GHz | 800 MHz to 2.1 GHz | 800 MHz to 2.1 GHz | 800 MHz to 2.1 GHz |
| Isolation (Min) | 17 dB | 17 dB | 17 dB | 17 dB |
| VSWR (Typ) | 1.2 | 1.2 | 1.2 | 1.2 |
| Phase Imbalance (Max) | 4 degrees | 4 degrees | 4 degrees | 4 degrees |
| DC Pass | Yes | Yes | Yes | Yes |
| Impedance | 50 ohms | 50 ohms | 50 ohms | 50 ohms |
| Pricing Variant | Standard | Standard | Calibrated (test data included) | Tape & Reel |
주요 차별점
- Built-in 50-ohm matching eliminates external components (vs Discrete Wilkinson splitter (resistor + quarter-wave lines))
- DC-pass capability removes bias-tee inductors (vs Non-DC-pass MMIC splitters)
- Direct form-fit-functional replacement available (vs GP2SA+)
설계 노트
Estimated: For the 12-VQFN exposed-pad GP2S+, the PCB requires continuous ground copper directly beneath the package exposed pad, with at least 8 thermal vias (0.3 mm drill, 0.5 mm pitch) stitching the top ground pour to inner ground planes. This provides both the RF ground reference return path and the thermal dissipation path for the internal GaAs MMIC die. Keep all three RF traces (IN, OUT1, OUT2) as 50-ohm controlled-impedance microstrip or coplanar-waveguide with ground, and route them with minimum length to minimize insertion loss.
When using the DC-pass feature of the GP2S+, an external DC-blocking capacitor is required on any port that connects to a DC-sensitive downstream device (such as an LNA input or a spectrum analyzer). Conversely, an RF choke is required on the DC-feed port to prevent the DC supply from short-circuiting through the splitter's internal path to ground. Failure to include both components will either damage the downstream device or short the DC supply.
Keep the three RF traces symmetric in length to within approximately 1 mm to maintain the specified 4 degree phase balance between OUT1 and OUT2. Asymmetric trace lengths create additional phase mismatch that adds to the intrinsic part-to-part variation. Place the part at the antenna feed point when used in DAS or RFID applications to keep both output traces short, and use ground vias placed at quarter-wavelength intervals along the RF traces to suppress spurious coupling modes.
규정 준수 정보
RoHS compliant per Mini-Circuits product page. AEC-Q100 not applicable (RF passive). Halogen-free status not explicitly stated in verified web data.
