2. Từ điển
3. Từ vựng theo chủ đề
4. Anten

• Alford loop
• antenna directivity
• base
• bazooka balum
• bay
• bifilar helix
• community broadcasting
• delta loop
• fanning beam
• folded quad
• frame
• girder
• high sidelobes
• illumination
• Pawey stub
• rotator
• slewing motor
• stacked array
• stacked loops
• sterba curtain
• stub
• tier array
• trap