Amplificatore di potenza PA per trasmissione del trasmettitore DVB-T COFDM TX 1w 2w 5w 10w 20w

amplificatore di potenza pa

Amplificatore di potenza PA per trasmissione del trasmettitore DVB-T COFDM TX 1w 2w 5w 10w 20w

Il modulo amplificatore di potenza pa realizza l'uscita di amplificazione di potenza del segnale RF. Quando la tensione in ingresso è 12V, connettersi alla scheda di modulazione COFDM, la potenza in uscita può arrivare fino a 1 W (+30dBm)

Caratteristiche

1. Banda di frequenza operativa: 300MHz~360 MHz (più frequenza è regolabile)
2. Guadagno: 45dB
3. Broncio: +33dBm (PAR=9,9 dB)
4. ACPR: < -36dBc
5. IP3: +49dBm
6. Figura di rumore: 6dB
7. Tensione di alimentazione: 12V, potenza 1W (+30dBm) trasmettere potenza, il consumo energetico è di circa 8,7 W.
8. Interfaccia RF: Foro filettato maschio SMA

Specifica

Specifiche elettriche @ +25℃，ZS = ZL = 50Ω,Vcc=12V

Parametro	Unità	Minimo	Tipico	Massimo
Gamma di frequenza	MHz	300	Opzionale	360
Piccolo guadagno del segnale	db		45.0
Guadagno planarità dB	db		+/-0.5
Potenza in uscita Pout@Pin=-15dBm	dBm		30.0
IP3dBm +49	dBm		49.0
ACPR(WCDMA PAR=9,9 dB)	dBc		-40
Isolamento inverso	dB		-45
Figura di rumore	dB		4
Efficienza(Uscita=+39dBm@470MHz)	%		13.8
Ingresso VSWR			1.3:1
produzione			2.0:1
Alimentazione CC	V	7.4	10.0	12
Corrente di alimentazione (Quiescente)	mA		300.0
misurare			35.1mm x 18,1 mm x 0,6 mm

Frequenza opzionale

PA1W330 Frequenza 300~360Mhz

PA1W470 Frequenza 450~500Mhz

PA1W550 Frequenza 544~564Mhz

PA1W600 Frequency 580~620Mhz

PA1W700 Frequency 680~720Mhz

Valutazioni massime assolute

Parametro	Absolute Maximum
RF Input Power	-5.0 dBm
Tensione di alimentazione	+14V
Temperatura operativa	-40℃ to +65℃
Temperatura di conservazione	-55℃ to +100℃

Panoramica

IL PA Power Amplifier module for COFDM transmitters is designed to deliver stable and efficient RF power amplification for digital video broadcasting and wireless video transmission applications. This high-performance amplifier provides an output power level up to +30 dBm (1W) under standard 12V operation, making it suitable for integration with COFDM modulation boards, UAV downlink systems, portable video transmitters, and other wireless communication platforms.

With its broad frequency coverage, adjustable design, and optimized linearity, the amplifier ensures reliable signal transmission with low noise and excellent spectral purity. It is particularly suitable for DVB-T COFDM transmission systems, where maintaining accurate modulation performance and minimal adjacent channel interference is critical.

The amplifier adopts a compact form factor (35.1 mm × 18.1 mm × 0.6 mm) with SMA RF interfaces, making it easy to integrate into existing transmitter hardware. It also incorporates robust protection features, ensuring stable operation across demanding environments, with an operating temperature range from -40℃ to +65℃.

With selectable frequency bands ranging from 300 MHz up to 720 MHz, this amplifier can be tailored for multiple industry needs including public safety, UAV video downlinks, military reconnaissance, wireless monitoring, and industrial IoT applicazioni. Optional versions are available with output powers of 1W, 2W, 5W, 10W, and 15W, offering a scalable solution for different deployment requirements.

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Caratteristiche principali

• Wideband Frequency Operation:

  • Supports standard working frequency band 300–360 MHz, con più modelli opzionali che coprono 450–720 MHz.

  • Regolazioni di frequenza personalizzate disponibili per applicazioni specializzate.

• Alto guadagno e potenza di uscita:

  • Guadagno tipico per piccoli segnali di 45 dB, garantendo una forte amplificazione da bassi livelli di pilotaggio in ingresso.

  • Consegna fino a +30 dBm (1W) Potenza di uscita RF con ingresso 12V.

• Eccellente linearità e purezza spettrale:

  • Rapporto di potenza del canale adiacente (ACPR) < -36 dBc, garantendo una trasmissione pulita del segnale con interferenze minime.

  • Punto di intercettazione del terzo ordine (IP3) Di +49 dBm, supportando un'elevata linearità per la modulazione COFDM.

• Prestazioni a basso rumore:

  • Figura di rumore di solo 6 dB, mantenendo la chiarezza del segnale.

• Efficienza ottimizzata:

  • Consumo energetico di circa 8.7 W con potenza di 1 W, con efficienza ~13,8%.

• Compatto & Design robusto:

  • Fattore di forma ridotto: 35.1 mm × 18.1 mm × 0.6 mm.

  • Interfaccia RF SMA per connessioni sicure e a bassa perdita.

  • Ampio intervallo di temperature operative -40℃ to +65℃, garantendo la durabilità in ambienti difficili.

• Gamma di fornitura flessibile:

  • Funziona 7.4V to 12V DC supply.

  • Quiescent current: 300 mA typical.

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Detailed Specifications

Specifiche elettriche (at +25℃, ZS = ZL = 50Ω, Vcc = 12V)

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Valutazioni massime assolute

Nota: Exceeding maximum ratings may result in permanent damage. Ensure proper heat dissipation and stable power supply regulation when operating at high output power levels.

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Optional Frequency Models

The amplifier can be provided in different frequency configurations depending on customer requirements:

• PA1W330: 300–360 MHz

• PA1W470: 450–500 MHz

• PA1W550: 544–564 MHz

• PA1W600: 580–620 MHz

• PA1W700: 680–720 MHz

Customized frequency bands outside this range can be developed upon request.

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Applicazioni

IL COFDM PA Power Amplifier is widely applicable in advanced RF transmission systems where high linearity, stable output, and clean spectrum are essential. Le applicazioni tipiche includono:

1. UAV Wireless Video Transmission

   • Enables long-range, low-latency video downlinks for drones.

   • Compatible with COFDM-based digital transmitters for reliable non-line-of-sight (NLOS) video delivery.

2. Public Security and Law Enforcement

   • Used in mobile surveillance units, body-worn transmitters, and tactical wireless systems.

   • Provides stable communication links in urban and rural deployment scenarios.

3. Broadcasting and Media Transmission

   • Supports DVB-T/COFDM standard, making it ideal for digital TV uplink and portable transmission setups.

4. Military and Defense Applications

   • Integrated into reconnaissance systems, remote-controlled unmanned vehicles (UGVs/USVs), and secure communication links.

5. Industrial IoT and Wireless Control

   • Provides robust long-range connectivity for industrial monitoring and remote control systems.

6. Emergency Response and Firefighting

   • Ensures reliable video and data transmission during rescue operations in complex terrains.

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Integration Guidelines

• Alimentazione elettrica: Operate within 7.4–12 V for optimal performance. Ensure supply ripple is minimized to reduce spurious emissions.

• Raffreddamento: Use proper heat sinking when operating at continuous high output power to maintain stability.

• Interfaccia RF: Always terminate unused RF ports with 50Ω load to prevent reflections and damage.

• Modulazione: Best suited for COFDM modulation schemes such as DVB-T, with excellent performance in adjacent channel environments.

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Domande frequenti (Domande frequenti)

Q1: What is the maximum output power of this amplifier?
A1: The standard module delivers +30 dBm (1W) of RF power under 12V supply. Higher power versions (2W, 5W, 10W, and 15W) are also available for extended range requirements.

Q2: Can this amplifier be used outside the specified frequency bands?
A2: SÌ, we offer custom frequency tuning upon request. Per esempio, if you require operation in 800–900 MHz or other bands, we can redesign the module accordingly.

Q3: Is this amplifier suitable for analog video transmission?
A3: While optimized for COFDM digital modulation, the amplifier can also be used for analog FM or AM-based video transmitters. Tuttavia, prestazione (linearità, ACPR) is best utilized in digital systems.

Q4: How does the amplifier handle thermal dissipation?
A4: The module is designed for efficient heat transfer, but when operating at high output levels continuously, it is recommended to mount the module on a heat sink or within a ventilated enclosure.

Q5: Can I power the amplifier directly from a drone’s battery?
A5: SÌ, the amplifier supports a supply range of 7.4V to 12V, making it compatible with 2S–3S Li-ion/LiPo battery packs typically used in UAVs.

Q6: What kind of connectors are provided?
A6: The amplifier uses SMA male thread hole connectors for RF input and output, ensuring secure and low-loss connections.

D7: Does the amplifier have built-in protection against overdrive?
A7: Input RF drive should not exceed -5 dBm (absolute max). It is strongly recommended to limit input power and avoid overdrive conditions. External protection circuits can be added if necessary.

Q8: What is the difference between the 1W, 2W, 5W, 10W, and 15W versions?
A8: The differences lie mainly in the power amplification stage. Higher power versions require additional thermal management and may have slightly larger form factors, but all share the same integration concept.

D9: Can this amplifier work with OFDM-based communication systems other than DVB-T?
A9: SÌ. It is suitable for any OFDM/COFDM system, including LTE, custom digital video, and wireless data transmission schemes, provided the operating frequency is matched.

Q10: What industries are currently using this module?
A10: Our amplifiers are widely used in public security, antincendio, UAV video transmission, defense reconnaissance, trasmissione, and industrial IoT fields.

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Conclusione

IL PA Power Amplifier COFDM module is a robust, high-performance RF amplifier optimized for modern digital wireless transmission needs. Suo high linearity, low noise figure, wide frequency coverage, and optional scalable power outputs make it a versatile choice for UAVs, trasmissione, difesa, and emergency communication systems.

Whether deployed in 1W lightweight UAV payloads or scaled up to 15W ground-based transmitters, the amplifier ensures reliable, efficient, and secure transmission of COFDM signals across diverse environments.